Help! How do I put my belt back on my Murray, 14 hp 40in lawn tractor?

I bought a new belt and can not get it to go on right. I have lost the manual. I have no man to show me how to put it on. There are no men in Virginia. None that will help a lady put a belt on the lawn mower. It won't tighten when I put it in gear to run. Everything seems to work. It's just I'm not putting the belt on correctly.

It's a Murray, 1995 14 hp, 40 inch lawn tractor
Help

Bonnie M.
May 2007