El,
UHS Hints gives more than just hints. If you move far enough through the hints it will end up giving a full solution to the problem area.
The second one requires the latest version of the Adobe Acrobat Reader. The walkthrough is very thorough with lots of pictures. It has been done by the developers, Kheops.
I could find no others.
Bill
http://www.mrbillsadventureland.com