Tasha your efforts are commendable to say the least. You have shown that you are pretty determined to improve and I don't doubt you will. It would appear you possibly went to pokerstove and slid the little slider bar over until you 5.4% of the hands. That isn't exactly how it works although it is better than nothing. When narrowing down his range in later streets you use a lot of different information such as reads, tells etc and also how the cards would interact with the range you put him on and his actions. I know this is very general and probably not a lot of help. My main purpose in responding was to incourage you to continue asking questions and working through things. See if you can't get a one on one conversation going in irc about ranges and make sure you read all you can.
Like others have said on this particular hand folding pre would have been your best move!