Help Creating a "Mac Kiosk" Using a Shell Script

Hello,

I have a MacBook from my school running OS X Snow Leopard and I would like to configure it so that upon restart, the student user folder gets erased and copied from a preserved configuration on startup. Can anyone show me how to do this through the use of launchd, LoginHook, or chron? Basically, I am trying to achieve a state similar to what Faronics Deep Freeze would provide, but my school doesn't have enough in the budget to license the 40 other Macs that they own.

I tried doing what this page recommended (http://www.gcsdstaff.org/roodhouse/?p=3164) which uses a LoginHook, but it didn't seem to work. The script executed just fine through the Terminal, but not on startup. When I tried launchd, it didn't work either. After using OS X for a while, I haven't really needed to use scripts until now, so consider me a noob 😝.

Any replies are appreciated,

LittlePLanet