Hi Rick,
When upgrading, it is ALWAYS advisable to get copies of your database and catalogs first. Secondly, never select the option to overwrite your data during the upgrade process, or to NOT make an upgrade during the process.
What you will have to do is stop all your BEWS services, including the SQL instance in Services.msc. Once done, go into the Data folder and copy the current *.ldf and *.mdf files to another location. Then rename them, and copy your old details in.
You may need to run bemig.exe from a command line to port your data across to a newer version of BEWS, but start by trying to bring up all your services first.
For your catalogs, you will need to rebuild that by catalogging all your tapes.
Laters!