If you have the code from ticker factory you need to put that in your profile under signature (access this via Forum Profile Information from your profile).
It should read like this (only without the ***, which I added to make it stop working)
[***url=http://www.TickerFactory.com/]
[***img]http://tickers.TickerFactory.com/ezt/d/4;10603;56/st/20070823/e/Honey+was+born%21/dt/4/k/26cd/event.png[/img]
[/url]
(This is the code for my ticker, but the url, img, brackets and such like should be the same - most likely you have a bracket missing)