I need a little more info? The d/b (Daughter board) is installed and you can clearly see it in the device manager. If yes is it shown under network adapters -or- com ports? Does the d/b have any power led's to indicate it is connected to your mobo? What drivers are you using and are those drivers for the d/b?
O.K. let's say that you have the d/b installed correctly to enable the card all you really need is to install the vz manager software that came with your card. Since you've already got it activated theres no need to do it again. What you can do is when you come to the end of the software install and it ask's you to insert card don't so it can detect it. I think the page is where it opts you to select wifi/evdo or just evdo. In other words exit the program restart the computer after windows loads then insert the card (k650) it should automatically be installed and listed under modems.
If everything is as it's suppose to be then we can go ahead and create a new connection under networks to use the card and believe me this card is fast..