That's one of the things that is so great about Poser 6, the cloth room is so much more improved.
Not sure what I can do to help you on Poser 5, the cloth room worked so lousy I gave up
using it.  It took a while to go back using it when I got Poser 6, and I was shocked at how
easy, fast, and reliable the cloth room is in Poser 6.  Now I much prefer it to using
conforming clothes.