Ok.... I have two suggestions for you.
First create a system restore point, as you will need to roll back if this goes wrong and you have to go to option 2.
Option 1: Follow steps 6-10 of the tutorial I posted above, but rather than clicking "Ralink, Technology Corp" when it asks you for the brand, instead click "Belkin" and then go from there.
If that doesn't work, fall back to your restore point, and then go for Option 2: follow the tutorial in it's entirety
I'm thinking you'll have to go for Option 2, as manually finding drivers from a Belkin installer is like getting blood from a stone.... that's what I tried before I discovered the Ralink method.