Hi lubag,
1 - Sorry I haven't heard about this STB. Is it FTA?
Try the internet.
2 - When you find the manual, this should be easy.
3 - If you do a scan, you might also pick the 5W satellite.
You can add Nilesat 7W to it, but you need to change the LNB to one which has a 3 degrees difference like Invacom. Will depend on what type of dish do you have.
You would then need to buy a Showtime smartcard and your STB should have Irdeto support.
If you can add another dish, then go for Hot Bird 13E. See my system.
Or use a motor.