@Mrsorin
"I think I was not very clear there, I want to have internet on my n900 from my PC, I still did not figure it out how to do it"

Why not connect by making an ad hoc wireless network on your pc, that way your N900 can use the pc's internet connection by connecting to your pc via wi-fi (usb wi-fi dongle is required if you pc has no on board wi-fi).

mart5.1