Need to "lock out" access to Control Panel

I have some elderly clients that are roommates. They are constantly messing with the User Accounts and networking settings in the Control Panel to the point where the PC becomes un-useable every 5-7 days. They lock themselves out by forgetting passwords, they "read on the internet that we could do this" and they completely destroy the networking settings and then can't get online, the get into the Intel display properties and rotate the screen 180 degrees and now the screen is upside-down and they can't work the mouse upside-down to change it back, etc etc etc. This type of activity has been going on for about 2 months. I know I can set up guest accounts in WinXP, but how can I restrict someone with Admin rights from accessing the Control Panel? Maybe a 3rd party app that will password protect the Control Panel? And then I don't tell 'em what the password is?

All of this wouldn't be so bad if they didn't expect a free password reset, or a free network connectivity rebuild once or twice EVERY week... if they were willing to pay at least a minimum, it would be less frustrating, but since they paid for a complete OS reload 2-3 months ago, they assume that they get free lifetime repairs.....
:banghead

(sorry for the rant :-o rolleyes )

 

TweakUI for Xp lets you hide any or all of the control panel icons. I believe it creates a Power Toys listing under the Start Menu which could be deleted. Then it can only be accessed in C:\WINDOWS\system32\TweakUI.exe

http://windowsxp.mvps.org/tweakui.htm

 

Yeah, I had forgotten about ye olde TweakUI.... that just might do the trick.... Thanks!