Okay, so here's the run down.
We're living in a place we can't set up wifi or any other internet connection, though we do have an internet dongle, we found out that people say you can hook up the connection using your laptop and an ethernet cable, but I'm absolutely cluless on the steps to take to achieve such things, it's all black magic to me.
So basically, what I need to know is using a Tmobile dongle, a Vista laptop, ethernet cable and an Xbox, how do I make it fxcking work? In the least complex way too.