In that case you may be out of luck.
Use the 'remove office' utility to completely remove all office app files &
preferences (it won't touch the MUD folder, but will remove any custom
templates you have set up for word, excel & powerpoint, as well as any
custom dictionaries, so back these up first)
Actually, already did that before I posted to the newsgroup, but with no
luck.
Then, reinstall and apply all updates and try again.
If this doesn't work you are probably out of luck
In the end I've had some success. The Microsoft techo I spoke to said that
the only thing left for me to do was search the net for any 3rd party
software that may be of use.
I came across something called Entouraid and ended up purchasing this. I
ran it and was able to retrieve all my lost incoming emails, but none of my
lost sent items. But that's better than the situation I was in! And, well,
I had received a lot more than sent out, so I guess I've recovered between
70%-80% of my lost emails.
If anyone's interested, Entouraid can be found at:
http://www.thepropellerheads.com/
Thanks to everyone for their assistance!