Ho can I make photos look old?

I want to make a picture look vintage and old


like a polaroid kind of





examples:





http://i27.tinypic.com/34gq169.jpg





and





http://i28.tinypic.com/2nhzvqv.jpg








oh,also I DO NOT HAVE PHOTOSHOP


i have picasa so,if there's anyway that i can do it on there


or on any other software i can download please tell me








THANKS IN ADVANCE!
Ho can I make photos look old?
start with a blur filter or soften the light


does the program allow you to make the photo sepia tone?
Ho can I make photos look old?
On your digital camera change the color to sepia or black and white.