the opening is one of the last things that one should study. if you know a bunch of book lines, but don't know the principles behind them, then it is useless. in my opinion the opening looked fine. erikido is right about the opposite sides castling.
i hope this helps.
Thank you, chessdragonboge, I will tell him. :)
Erikido23, thank you for the insight; he liked your ideas. Although, not sure I understand why he shouldn't have studied opening theory. He does know the principles of opening theory but wouldn't he have been better off if he knew The Rug Lopez more thoroughly?