Signature help

If you go to your profile and then click on one of the tabs that says Signature you can edit your signature there. Get a picture, add some text, and save, your signature should now appear wherever you post in the forum! : D

To get a picture in your signature though, you can't upload it directly from your computer, you have to get the link off from another site, like tinypic or something and paste the IMAGE code there.

You first click the Yellow Profile Button. Second, you click the word "Signature" on the right hand corner.
Then, you click the image button and post the link from your picture (like go to tinypic.com and upload it there
you can then it will give you the link (the direct link)). You click the image button again and it closes it. Press the save button
and there you go :]

Is it possible to upload a signature? If it is how do you do it?