[pwilt]

Click the "JEMS Products" hyperlink at the top of the main JBoss page.
Click the "JBoss Eclipse IDE" hyperlink at the left of the page.
Click the "Wiki Knowledge Base" hyperlink under "JBoss Eclipse IDE" link.
Click the "How to Build JBoss-IDE" hyperlink and follow the instructions.

Or goto the following hyperlink:

http://wiki.jboss.org/wiki/Wiki.jsp?page=JBossIDEBuild