Apricot makes a very valid point. Installing any OS is not that difficult. It is always good to know how as you may need to do it again. Besides, installing it will give you a better feel for the overall network.
It doesn't matter what OS is on your PC at the time. You just put in the Windows XP Pro disc, reboot your machine and watch for the message that says...Boot from CD. Click on ANY key. Then follow the prompts. Windows will load all your files for you. The only slightly difficult part would be the screen where you create a partition and format the drive. Even that is easy if you follow the instructions. But, I am sure anyone on here could talk you through it. Once you get to the point right after where it starts to format, Windows takes over and you only have to do things like name the computer and set the time zones.
