Here's the setup:
I have available 1 wireless network (protected using LEAP) and a LAN. An XP laptop that can connect to the internet using either of the two networks (wireless or LAN).
The ipod touch can't connect to the wireless using LEAP so i need to find a way to use the laptop as the access point. I need to share the laptop's internet connection so that my ipod can use it to access the internet.

I also have a mac laptop available if that makes a difference.
a router is not an option. i'm at work.