You can do either pictures on your harddrive, which can be uploaded to the Pet Talk server, or by linking to a website.

If you are going to link, put this around the URL (of the picture, not the website):

[PHP][img]website url[/img][/PHP]

To upload to the server, scroll down to the bottom of the post reply box, where it says "attach file" and click the browse button to find it on your hard drive, then hit open.

I don't know how computer literate you are, these are the very basics of the instructions. If you need more help, just holler, someone will come to your rescue.