Application on PHP&MySQL + Wialon

Hi all,

I consider possibility to use  Wialon system, and to integrate it into my application based on PHP and MySQL.
If I understand correctly, I need account on Wialon system, (e.g.  Wialon Logistics), and to tie it with my application. After that, I should send data (e.g.  type of vehicle) to Wialon, and finally, I should receive position of vehicle presented on Wialon map.

I'm wondering is it necessary to have same database structure on Wialon system as structure on my system?
On what way i achieve data from Wialon system in order to manipulate with relevant data (e.g. about driver or truck position)?

Thanks