I have Fritz 12. I really like that program a lot but i miss some features. Is there a chess program out there which is even better than Fritz with regard to teaching functions. Ideally i want a program that allows me to analyze my games and explains the moves in depth. I know that is asked for a lot 

I don't know of any program that will "explain" moves.  They will give you a +- score, and variations.  But they won't explain any positional ideas or anything like that.  For analyzing your games, computers are just good for spotting tactics.

Here is an interesting article about a program called Chess King.

http://www.chesscafe.com/chessok/chessok.htm