I made a signature with gimp but how do i put it in?

All right i made a signature but i have no clue how to add it in?

So what, you have a picture file? go to profile, then signature, scroll to the box, host an image button, then post the url in the box and hit save.

I made it with gimp not off of google! gimp is like photo shop but free

I assume you can save it as a picture file (jpeg or img or somethin) then follow my steps

I found a cool pic

... you have to upload the file to a image hosting service before you can use it unless you have a server to host it on along with open ports in your network and firewall. After you upload the image file they will give you a little link to the image that you can use. Just enclose that link in the appropriate code
(Here being BBcode) so it will look something like this [img]host_service.com\img_1568[/img]