|When you say you can't get into the wireless settings are you talking on the hp or the router?|
If wireless is builtin you would go to the bios and make sure it is enabled.
Then you would check device manager in Vista to see the driver is installed [exclaimation point next to the device if not]
You would then go into network connections and confirm tcp/ip is installed and configured, that MS client for networks is installed
Then you would configure the wireless card settings.