XP Username change

I came across a couple of tips yesterday about really changing the Username (and profile) in XP. I wanted to do this to see if the reason for only the iMac's Gerry home folder being visible in the XP workgroup was the Username Gerry on XP. So I changed it to gfraser, like the iMac, and sure enough after a long copy profile process I could run workgroup and there was everything in the gfraser folder.. QED