wine users - Jun 2012 - Re: Microsoft Office 2000 SR-1 installer failed (Wine 1.4)

I hope I'm not hijacking someone else's thread. But it is a related
issue.
I can easily install MS Office 2000 via Wine (as XP) in Ubuntu 12.04 and Mint
13. It will even take some early updates and the file format converters for MS
Office 2007/10.
Works a treat. 
Unfortunately I get a Wine 'internal error' when I try to upgrade Office
to 2000 SR-1 (which I was able to do in Windows - and then SR2 and SR3).
I do believe I have the correct SR-1 update installer (though it was pretty
difficult to track down as Microsoft no longer supports Office 2000)
Has anyone else encountered this specific issue and found a way round it?