I have tried the JBoss IDE upgrade procedure described in the JbossIDE-install.pdf document
JBoss IDE update fails (Hibernate Tools 3.1. beta5) from site http://download.jboss.org/jbosside/updates/stable on the last download step, namely for the freemarker-ide version 0.9.10.
The feature.xml of Hibernate Tools shall contain the corrected 'discover' tag with the url pointing to the proper site containg the latest (0.9.14?) version of freemarker-ide.