ledgersmb-1.3.23-1 on debian-6.0.6, post-install

[ario <..hidden..>]

Hi, now that I'm able to access the setup.pl, I am confronted with a
screen saying: "Data Management Console", and under "Superuser
Credentials" I am required to fill out a "Database" field, after which I
can click on a Login button.

Now there are three 'companies' of which I have the 1.2.21 backups on
disk and which need to be upgraded to 1.3.23.
Should I give the name of one of those companies in the 'Database'
field, after which I will be able to import the 1.2.21 backup of that
company?

Then repeat those steps for every company?

I don't want to input the wrong data in the various fields that pop up
in front of me, so please help me understand the procedure a bit :)

Thanks