Hi,

Its quite easy..

1) Connect your PC to the MODEM directly (I assume this is needed for un-interrupted Download i.e. Torrent )

2) Connect your belkin wireless on the spare RJ 45 slot on your Modem (You must be having 3 slot total 1 for modem,2nd & 3rd spare for parallel lines)-- This must be needed for portablity and ease of movement ;)

Then configure the wireless network as usual.

Please search youtube and you can have proper demo/visual for better understanding if are Naive at it.

Aamir