If they say yes, remember you'll still need a tomahawk.taglib.xml file for Facelets. You can find one on the Facelets home page. I'm using MyFaces 1.1.5, Tomahawk 1.1.5 and the Tomahawk treeTable with Seam 1.2.1.GA. This setup works. Please report back if the MyFaces guys say there are problems with the 1.2 RI, that would be an unfortunate gotcha. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4040329#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...