The Linksys router you are talking about does not work with VP. There are two solutions to get wireless.
1. Get a D-Link wireless router (I have WBR-1310
2. If the Sorenson router has more than one port, use one port for the VP, and configure the Linksys router as a wireless access point, and plug it into one of the other ports on the Sorenson router. Then you will have a wireless access point, but a wired VP.