((If anyone wants to have their sig picture to also contain a link to the guild, here's how I did mine.
First of all, I shrink every link down using tinyurl.com, there are some other sites that do the same thing, so use which ones you wish. You will have two links, one for the site, and one for the picture. I host mine on photobucket.com, if you have a different one that you use, by all means, continue.
The code you use first will be the url code, then the image code. The url one will include its address inside the brackets, while the image address will be outside the image brackets.
Example code with links:[ url=tinyurl.com/4xztn][ img]http://tinyurl.com/6yn28[ /img][ /url]
And here's what it should come out to (minus the spaces):
And there you have a clickable pic. I thought this might help out people, I know it took me a few tries before finally getting it correct. Need to brush up on my bbcode. Anywho, hope this helps!))