Hello,
By the way: is it possible to configure the shipping method, that the shipping fee is automaticly removed when a certain amount for the order is reached?
Sure, you'll just have to create 2 shipping methods (1 for each case ) and use the "Price" and "Minimum/Maximum Price" options through your shipping methods configuration page to probably restrict them.
@nicolas: oh great, thank you is there a possibility to upload the adress information in a csv or somthing corresponding?
There is no CSV import option for custom fields, so the solution will either be to do it manually or directly by using SQL requests through your phpmyadmin.