wouldn't say that - bear in mind even though it says Stardock Support is user helping user based. from the support page:
Still need help?
Email Stardock Technical Support (please give up to 48 business hours for a response)
General Technical Support Inquiries (please give up to 48 business hours for a response)
Stardock Support Forums (get help from other users - this is the fastest way!)
support people do come here when they can.
I don't have Vista, but when I click skins and themes - it came up blank but immediately started downloading new libraries (takes me a long time since I'm also on dialup)
have you tried a right click > refresh libraries?
thats not the problem, the thumbnails don't show up by default, i must minimize/maximize or click on a few then they start to show up. i've tried on other vista machines to try and reproduce the problem. maybe i'll hop in chat and ask