Setting restrictions on users for XP Pro SP3?

So i have company coming over and im setting up a guest user with restrictions. Iv dont some of the things before i just cant remember how.

Either using regedit or a program how can i:



Disable downloads and installs

Disable viewing/usage of control Panel

Disable ability to delete

Disable ability to change properties of Desktop (or everything)



A good link to a web page (not a search engine and faulty link), name of program or instructions how to do these would workSetting restrictions on users for XP Pro SP3?
It will tell you how here,

http://www.scribd.com/doc/579/Setting-Us