Alright, so I recently have subscribed to a cable company to obtain internet. They offered me a Belkin G router free. I took it. My Wii connects to it, so everything with it seems fine. However my computer has trouble with it. I have never had trouble connecting wirelessly to any other router other than this one. Whenever I try to connect to it, it says that "This computer is connected to the network but does not have access to the internet."

What can I do to fix this, any ideas? I feel like it's some weird setting somewhere, maybe not though.

Welcome to the Vista Forums,
Below are two links that may provide some information that could be of help to you.

Vista Local Only and Limited or Not Connectivity

Vista incompatible issues

Upgrading driver would fix this,

connect to internet through internet cable or to other wireless

go to

control panel
hardware and sound
device manager
network adapters
wireless adapter network
right click and update driver software