I imported the RhodiumX msstyle using SkinStudio. I can load the visual style from the WB control panel w/o a problem, but after I restart or login, it defaults to windows classic. The skin also does not show up on the appearance tab (although it shows up in the wb control panel).
I have the full version of WB, latest build (as of 9/10) downloaded via Stardock Central on WinXP Home SP1. I do not have problems with any other skin.