I have a 8100 Inspiron using ME.  Shortly after I bought the p.c.  I purchased the XP upgrade from Dell or Microsoft.  It is an uograde package.  I wanted to format my drive (20 gig, no partitions) before the install of XP. My question is do I have to reinstall ME on the clean drive before using the upgrade disc?  Also there are instructions in the package for flashing the bios. I have never done anything to a p.c. before and am  wondering how complicated this is.  Thank you for any help  Granny Sue