Just open START > ALL PROGRAMMES on your computer and click on the "Windows Update" . SP1 is a massive download and will probably take over an hour on 56k dialup connection. On BB 600 and above its not too long. The best way to get it is from a computer mag free disk. In PC PRO mag issue 100 FEBRUARY 2003 the free disk contains 100 Essential Utilities, patches and drivers and Windows XP Service Pack 1 is included. It has also been included with some windows XP books. By going to the windows update on your PC the installation will be done for you. One of the advantages of SP1 is that it contains many new drivers. The drivers for USB2 being a typical example.