Your wireless router runs independently of any OS, so I'm not sure what drivers you're referring to. Drivers *would* be relevant if we were talking about USB/PCI wireless client adapters since those are installed in the OS.
Actually the problem is that the installation cd will only install on a 32 bit machine. The question really then is just what to do to install on a Vista OS on a 64 bit machine.
Those installation CDs are not really necessary. By default, almost every wireless router is configured to work "out of the box". In fact, that's often the problem. Ppl plug them in and off they go, never bothering to change their wireless SSID, enable wireless security, etc., obviously to it all. The only notable exception would be a connection to DSL modem which typically requires configuring the WAN port for PPPoE and username/password. But for a cable connection, 99% of the time it just works.
So just connect your cable/dsl modem to the router’s WAN port, your PC to a LAN port or wireless and see if it works (there won’t be any wireless security by default). And if and when you need to configure the router further, go to http://192.168.1.1, login (username = admin, password = password), and make your changes.