I found that this article has very good explanations on how people were saved in the OT. (using the Bible as evidence) If anyone disagrees with the article or has other thoughts/views please let me know. (especially Pastor Cephas) Certainly I'm not the expert on this but found it to be the best explanation to show what I currently understand. It also helps me to understand this week's passage in Romans.

http://www.faithalone.org/journal/2003i/bryant.pdf