Hard Drive Letter Assignements: How to?

I have 2 main drives C: & F: and a CD Drive G:
Previouly I had an Image (Ghost) drive letter which I just uninstalled and the drive that used to be F: has been given another letter and in fact I can't access it at all now. I was trying to change it back to F:
and was wondering how, or is there a way I can get it to be reconised again?

When I go into F2 setup as the machine is booting, I see it is reconised in the Bios
as a 100gb drive which is correct.
I had originally set it up to be dual boot to Windows ME or Win 2000 and now I dont get the option it goes straight to ME, Im thinking bcus the ghost drive messed things up.

Any suggestions are appreciated! Thanks

 

Scroll halfway done this page http://www.webtechgeek.com/How2-Change-your-drive-letter-assignment-in-Windows.htm to get info on drive letter assignments + there is a small utility to accomplish this.

Regards - Charles