You should ask on the WIki forum...
I now see the 'Design of JBoss Wiki' forum - sorry for posting here.
On a side note, I am busy downloading JBoss AS 4.2.1 and shall be testing JBoss Portal 2.6.1 on there once it's installed - hopefully I won't be getting anymore errors (like those I posted yesterday). If I do, I'll be sure to let you guys know.
But for what it's worth, JBoss AS 4.0.5-GA (JEMS-installed) and JBoss Portal 2.6.1 do not play well together :-)
For the record, I use AS 4.0.5 along with Portal 2.6.1 and everything is fine...