hi...there are new binaries for jboss forums 1.2.0. They are three versions:
JBoss Forum 1.2.0 Beta 2.7 - forums version without clustering
JBoss Forum 1.2.0 Beta 2.7 JBPC - version with jboss portal clustering system
JBoss Forum 1.2.0 Beta 2.7 C - version with jboss as clustering system
2.7 is the version of jboss portal where it can to be installed. There is a new version also for jboss portal 2.6.
you can to take them here:
http://www.jboss.org/jbossforums/