I want to use mine 7290 as a modem for a laptop, using the blue tooth connection.
I believe this is posible, is there anyone who know how?
Please tell me how ! Or tell me where i can find this.

(so I dont want to use the usb cable connection between the BB and the laptop)

You can not use the BT connection as a modem connection. It is not possible. There are no hacks or other ways of making this work.