Clueless in Israel

O.K., I've decided I'm going to do a triathlon this year and after reading countless articles on the benefits of an HRM I go out and purchase one; a unit recommended by a BT member. The problem is I have no Idea how to decipher all the information. I've read the manual several times and still don't quite know whats going on. I purchased the Polar S210. It's agreat looking unit and has a ton of options I just need to figure out how to use them. I'm going to go through the manual again- wish me luck.