Ok, lets slow down a little here. This forum is a fantastic place full of very useful information. Mostly you won't get answers within 10 seconds of asking but you may get answers if you wait a little. Posting again and again with the same questions and tagging those questions on to several other posts only antaganises people and encourages a less friendly reply.
If you're new to Dreambox then don't expect to having working this weekend. You've got a lot to learn as did we all. Anyway, rant over.
My personal opinion is this. Although the internal reader will operate your card, it will run it very very hot and therefore at risk. For the ebay price of < £10 or retail price for £25 you'd be better with the omnikey reader.
Google for Omnikey and find the manuf. site, the model is a 3121 USB. The site will list UK suppliers.