Do you use JBoss Developer Studio or another Eclipse-based tool?
We do not maintain or release any XSD files that can be used by IDEs. TLD files are included with RichFaces and they work well for me (I can see the mentioned attributes in autocompletion wizard).
If you use JBDS then you can told our colleagues about the issue here: http://www.jboss.com/index.html?module=bb&op=viewforum&f=258
I'm using JBoss tools plugin for EclipseIDE. I upgraded from richfaces 3.1.4 to 3.2.0 could it be an issue with the plugin not refreshing the TLD or XSD info ?
ask this question on the right forum. I.e. on the JBoss IDE forum.