ERROR 1324.

Can Somebody Please Help me???
Recently i've been away from the computer that holds all my ipod information.. my first mistake..
Of course somebody went playing with settings and driver charachters.. A new usb hub (multiple connections) has been connected, there for stealing my external hard drives domain name.. eg. external drive was F:\ Now its H:\.. Also all music files on the computer are now configured to another music player and not itunes.. So all my songs(3500) are now in some strange computer language and not title, artist, album, rating etc... So i decided to give up and scrap the lot and start from scratch. So i've formatted my hard drive with all my ipod and itunes software and music tried to re-install itunes but with no suscess.. error 1324 keeps coming up.. when in add/remove programs there is an ipod update 2004-07-15.. when i try to remove this update same error accurs.. error 1324. telling me that there is an unvalid charachter in a user name.. but i don't use user names on the computer.. everybody uses the same user name.. I'm depressed...So when i try to install itunes i get an error or if i try to remove ipod update i get the same error... can any body help me please???