Yo have the pics in photobucket? You have the option under the pic to have a rul or img code etc. You need to click in the last box/option and it copies it automatically.
When you have done this you can either go to your siggy and post there or in a thread as follows; you need to type in then paste the code, then follow by [/IMG*] but don't inlclude the star *.
I hope that works for you. Lets us know
Uzz