the business console is a completely different technique from the ADNM console.
SBC is webbased where ADNM is native client based.

The database setup is different too so its not possible to do an easy migration.

Did you evaluate the SBC product yet?
If not then try it and you will see how easy it is to handle for simple configurations.

I have to migrate ASAP actualy but i will do a fresh install. Was thinking about how to deal with the database, i want to reuse the database instance but not the tables.
So i probably will delete the database (clients will automatically fall back to the internet update servers for their updates). Uninstall ADNM and the install the SBC.

Just keep in mind to fullfil the needs of the client settings in Windows when depoying the new client to the workstations (meaning the LOGON AS SERVICE for the account that you use to install). This account has to have that right else the deployment to the client fails. I used a grouppolicy setting to give the installation account that right for my entire domain, else it will be hell to visit all the computers to manually add that account to logon as service.