TomcatXT plugin requires:
Starting from version 2.0.0 this plugin does not require Sysdeo Tomcat plugin any longer.
This project is hosted by Sourceforge and it can be found at
Download the plug-in and copy it to your "$ECLIPSE_HOME/plugins" or "$ECLIPSE_HOME/dropins" folder.
Please, see the features page for more info on the current version.
If you have Eclipse 3.7 you can drag the Install icon below the left menu into your workspace to install Tomcat-XT.