Not a very timely reply , but...

A really good, completely free program for this is Irfanview. It's very small (only a 1-2 megabyte download), fast, and works really well.

http://www.irfanview.us

And here's a page that is a Tutorial on how to use it for the basics:

http://www.deadzoom.com/member/nktow...w_Tutorial.htm