Can you retrieve a full sized image from an album on facebook?

[Fish]

Hey guys,
I'm was looking online for ways to retrieve a full sized image from facebook, when I came across this promising site:
http://forum.developers.facebook.com/vie...p?id=27169
It looks like they are using commands to retrieve the url where the original image is stored. Unfortunately, I have no idea how to input these... commands? My computer knowledge is fair, but I have no experience with programing. Could someone explain to me what they're doing and if it is possible to retrieve the full sized image from facebook?
Clarification: facebook reduces your picture to... less than .34 megapixels... My cellphone has 2.0 megapixels, I think... so I can't get any decent quality pictures.