configuring xp as a wireless bridge

Hi! I have not found a solution for that on Google, so I hope to find a network wise here!

I have a laptop connected to an home router through the built in wireless card. It has checked the "share internet conexion" option. I can browse on internet with this laptop.

The same laptop have another usb wireless card configured as ad hoc with the other(s) computer. This second computer is communicating with the first one, but the router does not answer the ping call (and I cannot browse on Internet with this computer either).

How could I join both networks?

Thanks for trying to help

I got a solution in the bandaancha.eu forum (topic: conexión compartida de internet wireless en un pc conectado también mediante wifi al router).

Sorry, this forum does not allow me to type urls.