Question about script

On your website description.
Or onto your forum widgets.

Have you tried putting it on your "Homepage Message" area?

On registration page with description what to fill in the options so that he / she can register even if they are new to forumotion forums !

Try putting it on the site description, See if that works. I am not sure what code you want to use
General>Configuration
Site Description:

Code:

<script LANGUAGE="Javascript">

I think this is not full code...
Just begin of it...