How & what do you use to make pictures look vintage & light?

I'm very new at this photo editing stuff and I'm kinda -let's just say, cheating with my photography. I just want my picture's to look old & vintage with a sepia lighting to it. Like this picture - http://l0vesaf.tumblr.com/post/3821605666/sandrascheeks-label-me-bomb AND
http://www.flickr.com/photos/safmac/5456646903/

By the way, this is so really good photography she takes. :)