Hi,
We moved to Jboss3.0.0 and found there is no documentation around. Apparently, 3.0 has been reachitectured from 2.4. Jboss moves its APIs to different packages in 3.0.
The docmentation support is very poor. I have to build my own JavaDoc. What do you expect from the something is free!
There'e plenty of documentation; its just a little hard to find.
Free QuickStart Draft 3:
http://prdownloads.sourceforge.net/jboss/?sort_by=date&sort=desc
Free Workbook:
http://www.titan-books.net/jbos30worfor.html
For Pay:
http://www.jboss.org/docs/