I have recently loaded a new exchange 2007 server and would like to test a few users with BES. I have two questions: How do I configure BES so that I can still use my exchange 2003 for my current users, and then point a few other users to my new exchange 2007 server. I assumed it was with the server configuarator on the BES server, but when I try and open it up, it asked me to run setup to finish installation. I've been reading that maybe our previous administrator tried to install MDS, but did not know the DB passwords. I also can't seem to find the set-up files from when it was originally upgraded. My current version is 4.1.4(rollup)(Bundle 134). What should I install to finish this, and be able to view the server configuration? Thanks.