The 4.2.x release of jboss includes an example of mssql 2005 config in docs/examples/jca
JBossMQ should work with any jdbc compliant driver, though you might need to tweak
the create tables (we usually reccommend creating them by hand anyway so you
can allocate space and maybe alter the indexes to tune the queries?).
If you are referring to the comment in the jbossmq example
This jdbc2 PM configuration has been tested against MS SQL Server 2000
That's an original comment from the person that first contributed the example
(a long time ago :-)