diff --git a/src/main/resources/org/gcube/portlets/admin/accountingmanager/client/custom/Css3BigTabPanel.css b/src/main/resources/org/gcube/portlets/admin/accountingmanager/client/custom/Css3BigTabPanel.css
deleted file mode 100644
index 9dac9f4..0000000
--- a/src/main/resources/org/gcube/portlets/admin/accountingmanager/client/custom/Css3BigTabPanel.css
+++ /dev/null
@@ -1,321 +0,0 @@
-/**
- * Sencha GXT 3.1.1 - Sencha for GWT
- * Copyright(c) 2007-2014, Sencha, Inc.
- * licensing@sencha.com
- *
- * http://www.sencha.com/products/gxt/license/
- */
-@def borderColor value('theme.tabs.borderColor');
-@def bodyBackgroundColor value('theme.tabs.bodyBackgroundColor');
-/*@def cornerRadius value('theme.tabs.borderRadius', 'px');*/
-
-@def cornerRadius 8px;
-@def tabItemMarginTop 2px;
-@def lastStopColor value('theme.tabs.lastStopColor');
-@def headerGradient value('theme.tabs.gradient');
-@def hoverGradient value('theme.tabs.hoverGradient');
-@def inactiveHeaderGradient value('theme.tabs.inactiveGradient');
-@def tabStripGradient value('theme.tabs.tabStripGradient');
-
-@def headingTextColor value('theme.tabs.headingText.color');
-@def headingTextSize value('theme.tabs.headingText.size');
-@def headingTextWeight value('theme.tabs.headingText.weight');
-@def headingTextFont value('theme.tabs.headingText.family');
-
-@def hoverHeadingTextColor value('theme.tabs.hoverHeadingText.color');
-@def hoverTextSize value('theme.tabs.hoverHeadingText.size');
-@def hoverHeadingTextWeight value('theme.tabs.hoverHeadingText.weight');
-@def hoverHeadingTextFont value('theme.tabs.hoverHeadingText.family');
-
-@def activeHeadingTextColor value('theme.tabs.activeHeadingText.color');
-@def activeHeadingTextSize value('theme.tabs.activeHeadingText.size');
-@def activeHeadingTextWeight value('theme.tabs.activeHeadingText.weight');
-@def activeHeadingTextFont value('theme.tabs.activeHeadingText.family');
-
-@def tabLeftPadding value('theme.tabs.padding.left', 'px');
-
-/*@def tabLeftPaddingIcon value('theme.tabs.paddingWithIcon.left', 'px');*//*extra space for icon, default to 16px for icon*/
-
-
-@def tabLeftPaddingIcon 50px;
-
-@def tabRightPadding value('theme.tabs.padding.right', 'px');
-@def tabRightPaddingClosable value('theme.tabs.paddingWithClosable.right', 'px');/*extra space for close icon*/
-
-@def tabIconLeftOffset value('theme.tabs.iconLeftOffset', 'px');
-@def tabIconTopOffset value('theme.tabs.iconTopOffset', 'px');
-
-@def scrollerBackgroundColor value('theme.tabs.scrollerBackgroundColor');
-@def scrollerWidth value('theme.tabs.scrollerWidth', 'px');
-
-/*
-@def tabHeight value('theme.tabs.tabHeight', 'px');
-*/
-@def tabHeight 56px;
-@def tabSpacing value('theme.tabs.tabSpacing', 'px');
-
-@def tabItemBorderLeft value('theme.tabs.tabItemBorderLeft');
-@def tabItemBorderTop value('theme.tabs.tabItemBorderTop');
-@def tabItemBorderRight value('theme.tabs.tabItemBorderRight');
-
-@def tabStripPaddingTop value('theme.tabs.tabStripPadding.top','px');
-@def tabBarBorder value('theme.tabs.tabBarBorder');
-@def tabBarBottomHeight value('theme.tabs.tabBarBottomHeight', 'px');
-@def tabStripBottomBorder value('theme.tabs.tabStripBottomBorder');
-@def tabBodyBorder value('theme.tabs.tabBodyBorder');
-@def tabTextPadding value('theme.tabs.tabTextPadding.toString');
-@def tabTexPaddingTop 16px;
-
-.tab {
-  overflow: hidden;
-  outline: none;
-}
-
-.tabBar {
-  background-color: lastStopColor;
-  border: tabBarBorder;
-  overflow: hidden;
-  padding-bottom: tabBarBottomHeight;
-}
-
-.tabStripWrap {
-  background: -webkit-linear-gradient(top, tabStripGradient); /* Chrome10+,Safari5.1+ */
-  background: linear-gradient(to bottom, tabStripGradient); /* W3C */
-  width: 100%;
-  overflow: hidden;
-  position: relative;
-  padding-top: tabStripPaddingTop;
-}
-
-.tabStrip {
-  display: block;
-  /* widths great than this in ie8 causes north / south resize handles to have white background when tab panel put into window */
-  /* width: 65520px; */
-  whidth: auto;
-  float: left;
-
-  background: repeat-x bottom;
-  border-bottom: tabStripBottomBorder;
-}
-
-li.tabItem {
-  float: left;
-  position: relative;
-  margin-right: tabSpacing;
-  height: tabHeight;
-  cursor: pointer;
-}
-
-.tabStripActive.tabItem {
-  cursor: default;
-}
-
-.tabStrip li.tabEdge {
-  float: left;
-  margin: 0 !important;
-  padding: 0 !important;
-  border: 0 none !important;
-  font-size: 1px !important;
-  line-height: 1px !important;
-  overflow: hidden;
-  background: transparent !important;
-  width: 1px;
-}
-
-.tabStrip a, .tabStrip span, .tabStrip em {
-  display: block;
-}
-
-.tabStrip a {
-  text-decoration: none !important;
-  cursor: pointer;
-  outline: none;
-}
-
-.tabStripInner {
-  overflow: hidden;
-  text-overflow: ellipsis;
-}
-
-.tabStripText {
-  font: normal headingTextWeight headingTextSize headingTextFont;
-  color: headingTextColor;
-  white-space: nowrap;
-  cursor: pointer;
-  padding: tabTextPadding;
-  padding-top: tabTexPaddingTop;
-  
-  
-}
-
-.tabWithIcon .tabStripText {
-  padding-left: tabLeftPaddingIcon;
-  background-position: 0 3px;
-  background-repeat: no-repeat;
-}
-
-.tabStripActive, .tabStripActive a.tabRight {
-  cursor: default;
-}
-.tabStripOver .tabStripText {
-  font: normal hoverHeadingTextWeight hoverHeadingTextSize hoverHeadingTextFont;
-  color: hoverHeadingTextColor;
-}
-
-.tabStripActive .tabStripText {
-  cursor: default;
-  margin-bottom: -1px;
-  font: normal activeHeadingTextWeight activeHeadingTextSize activeHeadingTextFont;
-  color: activeHeadingTextColor;
-}
-
-@sprite .tabStrip .tabStripClosable a.tabStripClose {
-  gwt-image: "tabClose";
-}
-
-@sprite .tabStrip .tabStripClosable a.tabStripClose:hover {
-  gwt-image: "tabCloseOver";
-}
-
-.tabBody {
-  overflow: hidden;
-  background-color: bodyBackgroundColor;
-}
-
-.tabStripActive .tabRight {
-  margin-bottom: -1px;
-}
-
-.tabStripActive .tabStripText {
-  padding-bottom: 5px;
-}
-
-.tabStrip .tabStripClose {
-  display: none;
-}
-
-.tabStripClosable .tabStripClose {
-  background-repeat: no-repeat;
-  display: block;
-  width: 11px;
-  height: 11px;
-  position: absolute;
-  top: 3px;
-  right: 3px;
-  cursor: pointer;
-  z-index: 2;
-}
-
-.tabStripClosable .tabStripClose {
-  opacity: 0.6;
-}
-
-.tabStripActive .tabStripClose {
-  opacity: .8;
-}
-
-.tabStripClosable .tabStripClose:hover {
-  opacity: 1;
-}
-
-.tabBody {
-  border: tabBodyBorder;
-  border-top: 0 none;
-}
-
-.tabScrolling .tabStripWrap {
-  margin-left: scrollerWidth;
-  margin-right: scrollerWidth;
-}
-
-.tabScrolling {
-  position: relative;
-}
-
-.tabImage {
-  position: absolute;
-
-  top: tabIconTopOffset;
-  left: tabIconLeftOffset;
-}
-
-.tabStripOver.tabItem {
-  background: -webkit-linear-gradient(top, hoverGradient); /* Chrome10+,Safari5.1+ */
-  background: linear-gradient(to bottom, hoverGradient); /* W3C */
-
-  margin-bottom: -1px;
-  border-bottom: 1px solid lastStopColor;
-}
-
-.tabStripActive.tabItem {
-  background: -webkit-linear-gradient(top, headerGradient); /* Chrome10+,Safari5.1+ */
-  background: linear-gradient(to bottom, headerGradient); /* W3C */
-
-  margin-bottom: -1px;
-  border-bottom: 1px solid lastStopColor;
-}
-
-.tabItem {
-  border-top-left-radius: cornerRadius;
-  border-top-right-radius: cornerRadius;
-  border-top: tabItemBorderTop;
-  border-left: tabItemBorderLeft;
-  border-right: tabItemBorderRight;
-  
-  margin-top: tabItemMarginTop;
-  
-  padding-left: tabLeftPadding;
-  padding-right: tabRightPadding;
-
-  background: -webkit-linear-gradient(top, inactiveHeaderGradient); /* Chrome10+,Safari5.1+ */
-  background: linear-gradient(to bottom, inactiveHeaderGradient); /* W3C */
-}
-.tabItem.tabStripClosable {
-  padding-right: tabRightPaddingClosable;
-}
-
-@sprite .tabScrollerLeft {
-  gwt-image: "scrollerLeft";
-  width: scrollerWidth;
-  background-position: center;
-  background-color: scrollerBackgroundColor;
-
-
-
-  border: none;
-
-  position: absolute;
-  left: 0;
-  top: 0;
-  z-index: 10;
-  cursor: pointer;
-}
-
-.tabScrollerLeftOver {
-  opacity: .7;
-}
-
-@sprite .tabScrollerRight {
-  gwt-image: "scrollerRight";
-  width: scrollerWidth;
-
-  background-position: center;
-  background-color: scrollerBackgroundColor;
-
-  border: none;
-
-  position: absolute;
-  right: 0;
-  top: 0;
-  z-index: 10;
-  cursor: pointer;
-}
-
-.tabScrollerLeftDisabled, .tabScrollerRightDisabled {
-  cursor: default;
-  opacity: .7;
-}
-
-.tabScrollerRightOver {
-  opacity: .7;
-}
diff --git a/src/main/resources/org/gcube/portlets/admin/accountingmanager/client/custom/Css3BigTabPanel.html b/src/main/resources/org/gcube/portlets/admin/accountingmanager/client/custom/Css3BigTabPanel.html
deleted file mode 100644
index 96f9032..0000000
--- a/src/main/resources/org/gcube/portlets/admin/accountingmanager/client/custom/Css3BigTabPanel.html
+++ /dev/null
@@ -1,11 +0,0 @@
-<div class="{style.tab}">
-    <div class="{style.tabBar}">
-        <div class="{style.tabStripWrap}">
-            <ul class="{style.tabStrip}">
-                <li class="{style.tabEdge}"></li>
-                <div class="x-clear"></div>
-            </ul>
-        </div>
-    </div>
-    <div class="{style.tabBody}"></div>
-</div>
\ No newline at end of file
diff --git a/src/main/resources/org/gcube/portlets/admin/accountingmanager/client/custom/Css3BigTabPanelTabItem.html b/src/main/resources/org/gcube/portlets/admin/accountingmanager/client/custom/Css3BigTabPanelTabItem.html
deleted file mode 100644
index 200d08b..0000000
--- a/src/main/resources/org/gcube/portlets/admin/accountingmanager/client/custom/Css3BigTabPanelTabItem.html
+++ /dev/null
@@ -1,4 +0,0 @@
-<li class="{style.tabItem}">
-    <a class="{style.tabStripClose}"></a>
-    <span class="{style.tabStripText}">{config.text}</span>
-</li>
diff --git a/src/main/resources/org/gcube/portlets/admin/accountingmanager/client/custom/scrollerLeft.png b/src/main/resources/org/gcube/portlets/admin/accountingmanager/client/custom/scrollerLeft.png
deleted file mode 100644
index 8d00a24..0000000
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diff --git a/src/main/resources/org/gcube/portlets/admin/accountingmanager/client/custom/scrollerRight.png b/src/main/resources/org/gcube/portlets/admin/accountingmanager/client/custom/scrollerRight.png
deleted file mode 100644
index 2add25a..0000000
Binary files a/src/main/resources/org/gcube/portlets/admin/accountingmanager/client/custom/scrollerRight.png and /dev/null differ
diff --git a/src/main/resources/org/gcube/portlets/admin/accountingmanager/client/custom/tabClose.png b/src/main/resources/org/gcube/portlets/admin/accountingmanager/client/custom/tabClose.png
deleted file mode 100644
index 1ca1c86..0000000
Binary files a/src/main/resources/org/gcube/portlets/admin/accountingmanager/client/custom/tabClose.png and /dev/null differ
diff --git a/src/main/resources/org/gcube/portlets/admin/accountingmanager/client/custom/tabCloseOver.png b/src/main/resources/org/gcube/portlets/admin/accountingmanager/client/custom/tabCloseOver.png
deleted file mode 100644
index c47ca89..0000000
Binary files a/src/main/resources/org/gcube/portlets/admin/accountingmanager/client/custom/tabCloseOver.png and /dev/null differ