Nutshell: Windows2K crashes and refuses to repair or re-install: using original disk caused a message explaining this was a downgrade not supported!
Installed XP and promptly discovered smitfraud.c. Using threads on this site finally cleared the problem. Loads of niggles but it IS working! Biggest problem is lack of disk space because some programmes are duplicated: I see the titles in Windows Explorer but they aren't on the "Programs" index in XP. So I re-installed Office 2K and others.
Can't work out which are the old (to erase) and which are the new. A list of duplicates won't tell me which to erase.
Any ideas on how to tidy my best friend!