The official Digitalb sports package shows english footy and this card will work in your dreambox. The signals are found on 16 degrees east.
The alternative way to get some football is by adding software cams to the dreambox, just like 'patching' to get whatever is hacked and available. Once you have the dreambox set up on your network you should be able to download cam emulations by using the blue button on your remote, depending on your image.
If you are new to the dreambox you may need to do lots more reading as its not a simple solution for sat tv, its just not a beginners receiver.