Its sounds like you have installed this device several times but it still does not appear to be working.
If you are able to access the internet by plugging your laptop into the router directly, visit the Belkin site and download the latest driver pack for your device. http://www.belkin.com/support/article/?lid=en&pid=F5D7050&aid=5381&scid=221
Run the file and follow the instructions.
If this doesnt work then try the following.
Remove your Belkin USB device
Click on
"Start"
"control panel"
"system"
"hardware" (tab)
"device manager"
Under Network adapters, you should see all the references to the belkin device you are trying to install.
Right click each of these and select uninstall.
Once you have removed them all run the File you downloaded from Belkin.
If it still doesnt work try the following.
Download the latest drivers pack from the Belkin website.
Download and install winrar
Disconnect you usb stick
Find the file you downloaded.
Right click it
choose "exctract files here"
Look in the extracted files and try to "extract" the .cab files in the same way.
Now plug in your USB device.
If it the "Found new hardware wizard" pops up select the option "Install from a list or a specific location" and press "Next"
Select "Dont search I will choose the driver" and press "Next"
If you can see "Have disk", click it.
If you cant see it yet simply click "next" and it should appear on the next screen.
After clicking "Have Disk" you should be presented with another pop up woindow, Click on the "Browse" button.
Now browse to the location you extracted the Belkin files too previously and select the appropriate .inf file.
This bit might take some trial and error but it should in one of the cab files you extracted earlier.