Yes they are connected to the same Netgear router which is wireless. Both computers are wireless.
Also, to get the ip, do I just type ipconfig in the cmd and then get the default gateway? Or is it something else. The ipconfig thing didn't work.
Also, I have filesharing on and SMB on in my MBP, and filesharing is on in the XPS laptop. But I still can't see it in my "Shared" de vices in the Finder. Maybe that is the whole problem?
Try this:
1) Disable Windows Firewall from control panel.
2) The windows computer MUST have a password on the account on which you are trying to use to log in with.
3) Try "ipconfig /all" from the command prompt to get your ip.
4) Make sure your version of windows vista supports remote desktop connection.... from what i understand Vista Home Premium and "under" don't support it.