Towards the top left of this page, immediately above your User name, you'll see the name of this forum: "Computers and Technology" .

Above that is a thick line with lots of words on it.... the first one being User CP. That is your User Control Panel.

Under that heading are several groups. Your Profile, Networking, Settings & Options etc. The second heading down under Settings & Options you will see : Edit Signature. Click that.

You will get two main sections opening. The first is where you put your signature in using words, and links.....eg. to smilies, or images from another site.

Under that is a seperate section called : Signature Picture .

That's where you change add or change a picture in your signature.

I hope that helps.