I know this is in the wrong forum, but mods please let it ride for a couple of hours - thank you

Okay chaps, the major probs I been having with this hi jack shit on my PC which I thought I had quashed just came back with a vengence and I haven't the patience to go through all this again... so.....

How do I wipe and re-format my harddrive, and go abotu re-installing windows (98SE)

I got two CD's here and a floppy ( ) disk... WTF do I do?