As much as it hurts to say this
You will have a Tiny System Restore pack that contains a floppy and a cd, windows ME I think is a version 6.8 (not entirely sure, i'll have to check). This will erase everything off your hard disk and reset it back to factory settings.
There is 2 problems with this.
1) if you don't have it, your fucked, unless I've got one indoors.
2) Windows ME is utter cack, and you can't run a 5.9 system restore pack (win 98) as the bios check's the cd so you can only run certain versions