OK bought a speedstream 6520 on ebay working great

bought a netgear wg311 v3 pci wireless card.. and i can't seem for the life of me.. to get this thing on the network. i am running vista ult. and man this is making me mad.. i really wanna move this modem/router to the middle of the house..

it says i have 100% signal.. and i put in my wep key BUT.. the channel keeps changing on the wireless card smart wizard...

help please!