I love those BROADCOM drivers - simple, sweet, and I keep my cell phone 100% synced with my computer since I bought it - every SMS / text message, every outgoing and incoming call, every calendar item, etc....
If you cell phone supports BlueTooth as well, look at
Welcome to BitPim - It is a must have application.
Both the stable 1.05 and the test 1.06 work perfectly in Vista 32bit and Vista 64bit.