What virtuemart file to edit when saving order details after purchasing product?

[JuanSender14]

Do you know what file to edit when you want to save order details in database after purchasing product in virtuemart 2?

I want to save some order details into another table(my own table) after purchasing. But I don't know what file to modify, I found the controller as well as view files for the cart but can't find the model where the data are inserted to database. We are currently using Joomla 2.5.17 and Virtuemart 2.0.26,

[Milbo]

Use the pluginsystem for that.