Using Access Point as a wirelesscard

okey, Im trying to use Sitecom WL-130 Wireless Extender (can also be used as
Access Point)
as a wirless card. more or less.

Im using Vista, and Vista doesnt like my wirless. so I got spikes every
60sec.
I havent found a single fix for it, so Im trying this.

Connect WL-130 Access Point via TP-Cable to my computer.
WL-130 Access Point connects to WL-173 (wireless broadband router).
and gives me internet.
But I cant seem to get my WL-130 to get the wireless from WL-173.
and I know there is supposed to be a excellent signal where Im sitting.
(as my USB Card finds it)

Does this even work? or how do I fix it?

thanks in advance.