i am looking for good and simple program

Irfranview is the best light weight. Then Paint.net, then Gimp, and the heaviest is photoshop.

I agree with the recommendation of Picasa. It's free. It's a great photo manager, and has good tools for basic things like redeye removal and cropping/rotating. It also has great functions to do things like email photos and make a gift cd. I've set up lots of my non-techie relatives and friends with it and everyone has been able to use it easily and been very happy.