kdesdk-3.0.0-5 does not include the poxml directory in any of the kdesdk %file sections.
It's fixed in 3.0.3-2
3.0.3-2 in rawhide? I do not see 3.0.3-2 in the 7.3 update directory.
Red Hat Linux is no longer supported, this bug has been fixed in RHL kdesdk-3.0.3-2 release and is also fixed in Fedora Core (I've checked this on FC 4 kdesdk-3.4.2-0.fc4.1) package. So I'm closing this bug.