In the install directory in file vbulletin-language.xml you will find the forum rules...
<phrase name="forum_rules_description"><![CDATA[<p><strong>Forum Rules</strong></p>
<p>Registration to this forum is free! We do insist that you abide by the rules and policies detailed
below. If you agree to the terms, please check the 'I agree' checkbox and press the 'Register' button below.
If you would like to cancel the registration, click <a href="{1}">here</a>
to return to the forums index.</p>
<p>Although the administrators and moderators of {2} will attempt to keep all objectionable
messages off this forum, it is impossible for us to review all messages. All messages express the views of
the author, and neither the owners of {2}, nor Jelsoft Enterprises Ltd. (developers of vBulletin)
will be held responsible for the content of any message.</p>
<p>By agreeing to these rules, you warrant that you will not post any messages that are obscene, vulgar,
sexually-orientated, hateful, threatening, or otherwise violative of any laws.</p>
<p>The owners of {2} reserve the right to remove, edit, move or close any thread for any reason.</p>]]></phrase>
To set a user to be an Administrator you would go to (in the admin cpanel) Users > Search for Users > (enter username or select Show All Users) > select the user you want to switch permissions > unser Usergroup Options > change from Registered Members to Administrator (or whatever else)
VBstyles.com as Jonathan mentioned...and I also have about 20 or so I do not use anymore. Although, I am not sure if they allow them to be resold.