im not going to be a dick...
predatoriean go here to upload ur sig to a site:
http://www.dodstudios.net/uploads/upload.php then once u did that take the url that that pic is at then go to your profile and then add this to your signature...
[img](image%20url%20where%20the%20pic%20is)[/img]
ex: [.img]http://reichnation.com/images/abc.jpg[/img]
just take the . out in the thing or else it would have loaded the pic so i couldnt have showed u
enjoy