Okay, here's how to upload pictures:

First
You need to create an account for a file management site. I reccommend Photobucket, but there is also ImageShack and Picoodle.

Second
Copy the web address to the picture. That means, when you are viewing the picture by itself, [for instance] the "http://www.photobucket.com/blutensorgen/picture001.jpg".

Third
Insert this address into [img][/img].

Last
Hit the Send button.