Ubuntu Help!

Ok, I have installed Ubuntu 6.06 on my other PC and I want to know how I can make it connect to the internet by using my laptops wireless connection.

I have the eth0 connected, but how do I tell it to go through my laptop for internet connection. Ive shared my laptop’s wireless connection. But when ever I try connect to the internet on my Ubuntu system it fails…

How do I get this to work? I need help fast please thank!!