Yeah, I think your eighth move was the fatal error. Trading a pawn for a bishop, even if it temporarilly takes out the O-O gave your opponent just way too much to work with.
I agree with all of you, and paulgottlieb thanks for the comments on 10, and 25. As I look at 10, it seems like it would of moved the knight and changed the game entirely, maybe even put it in my favor for the end game, and at 25 it would of fixed my position and maybe given me a fighting chance.
Please analyze the game, and if you see a way i could of saved myself at the end please say so.