As I understand it correctly, you started with a complete empty Tryton system, so no modules installed. Then you activate the company module and start updating the database. In this case, Tryton should run some wizard to help you setup the company.
Personally I prefer to do it myself because some extra steps are needed. to get started.
- you have to import countries and postal codes (see Setup — Tryton module with countries).
- you have to import the currencies (see Setup — Tryton module with currencies)
But before you are able to do these steps, you have to install trytond_country and trytond_currency. Then the scripts are available and can be executed.
After that, you can create a new compay, see Change current company - #16 by edbo for more information.
It’s maybe a bit rough, bit hopefully it helps.