Here’s the fix:

Simply replace your old logout link with:

<?php echo wp_logout_url(); ?>

Yup that’s it. Wasn’t too difficult, eh?

Well, it’s pretty hard to find a working solution.

If you have a VBulletin license you can download it here.

That will allow you to hide bbcodes such as [URL] from guests.

You should also get a mod to add a new group for spiders thou.

Update:

Install this to assign spiders to a usergroup:
http://www.vbulletin.org/forum/showthread.php?t=196418

Do you want to turn on “instant E-Mail notification” by default?

E-Mails can you help to get more replies on your forum. Therefore some forum admins turn on this option by default. How would I do that?

To change all current members to this setting – AdminCP > Import & Maintenance > Execute SQL Query > Automatic Query, chose “Instant Email Notification” from the dropdown menu, Click the “Continue” button, and on the next page under Confirm Query Execution click “Continue” again.

Reminder: You should have a current backup before running queries.

To set the default for future registrations – AdminCP > vBulletin Options > User Registration Options > Default Registration Options > Automatic Thread Subscription Mode, select “Instant Email Notification” from the dropdown menu, and click “Save” at the bottom of the screen.

Source: http://www.vbulletin.com/

Having a TOS (Terms of Usage) is a mandatory nowadays.

Here are some useful information and free templates you can use for your own site.
Actually, it’s a TOS for the UK, but you can easily make it fit your own country.

http://www.businesslink.gov.uk/
http://books.elliottback.com/legal-notice/