You have to ask your dealer to get the directory of your Beo5 serial number from "...beo5configTool\Clients" program directory.
The Config tool creates a new directory inside "Clients" for every new Beo5 connected to the computer, this directory is named <serial number of new Beo5>. If you got this directory (and overwrite the local one created after connecting the Beo5), you can load your existing configuration and can change it.
There is no option to read the config from Beo5, it's one-way...