Hello, Falco, welcome to the forums!
You can take a look at this site, it has a complete walkthrough for Abe's Oddysee.
Sinjin's Oddworld Walkthrough
But if you want to have a little fun, don't look for the solution of a particular level without even trying by yourself, unless you are really stuck.
Good Luck and enjoy the trip through that Odd World...
[ August 28, 2001: Message edited by: Lampion ]