I ran the setup.exe and it took me through the entire setup, but never mentioned finding my 3.5.2.14 version and asking if I'd like to upgrade.
So now on the same Windows 2003 server, I have 3.5.2.14 and 4.0 installed and working. The SQL Database which is on a seperate server, it couldn't find so it made a new one. (First I tried installing without SQL) I need to have my legacy data. If I uninstall, how can I make 4.0 recognize that I have a previous version I want upgraded?