For those of you with a O2 USB Broadband modem and want to use it on a 64bit operating system like windows 2003 server or SBS 2008 ect then you will need to install some 64 bit drivers. After a bit of digging about I found some modified Vista 64 bit drivers that will work with xp and windows 2003 server.
You can download the drivers from:
Here is the link to the forum post [FORUMS]