Need help Upgrading



I have a little problem here. I have a CYFRA CP3000P analogue receiver thats about a year or 2 old. Last April, I met a guy who said he could give me tons of channels for a "modest" price. I agreed and he took my receiver for a few days and brought it back. He also installed a much larger dish than the one I had originally. The receiver itself he said he "fixed" so it didn't need a card anymore. I've been receiving channels, but every few weeks, I lose a few. I really don't wanna pay that price again and was wondering if I could get some help on re-programming it myself. What programs do I need or is there a tutorial somewhere that would help me out. I'm currently in southern Poland. Any help or ideas would be greatly appreciated...