The feature in Outlook 2000 is that if you abreviate the name there is a resolve key which will resolve the unique addresses and will bring up the options on a multi name resolve if you want - this will also occur automatically on sending if you so set-up.
We autobackup the Mail files on shutdown to get round any back-up problems - but if you want the cats whiskers - swap to Notes.
Watching what express can do - unless youre running a company with a 100's of staff - don't waste your time changing - the big version also has limitations and whith a lot of data - it stalls easily and plays up quite a lot. 2002 should be better but... its still MS as opposed to GOOD.
Just a personal opinion of course. Have fun 410 (is that AKA from a late Eastern airframe no. ?) - a 1011 if memory serves.