I've updated 1.10 and 1.0.1P26 version with the new libraries of portal 2.6.3 .
But it can to be used only into 2.6.2 and below. There are yet some problems with JSF and GWT. Mainly there are ClassNotFoundException when you are logged.
since the last tests we can to tell forums is 100% compliant for jboss portal 2.6.3, Last versions of forumscompliant with 2.6.3 can to be taken from http://anonsvn.jboss.org/repos/labs/labs/jbossforums/branches/