Internet from PC to PPC via WiFi

[Nightwalker]

Hi, I do not know a lot about network connections, but I'd like to connect my HTC Touch PPC to my Desktop computer wich has WiFi adapter on board (Asus P5W DH) via WLAN and access internet through this connection.
So far i set up ad-hoc connection and it is working, but i can not get to the internet from my PPC. Internet explorer keeps keeps coming up with errors: "Can not connect with current connection settings" or "adress is not valid" or "the remote party has ended this connection"
Could someone help me to solve this?

P.S. I configured internet connection sharing from my wired LAN connection to WLAN on desktop.