[BirdOPrey5]

As to the missing words on your navbar, I would check your 'phrases' - go to the Admin CP -> Languages & Phrases, search for the phrase and see if you have an 'englsh' translation that is just a blank space... Copy the default text to the translation and see if it works. Not sure how it could happen but it would explain the symptoms.

To add links to the navbar you would edit the navbar template in Style & Templates -> Edit Templates -> Navigation templates -> navbar

Search for one of the links in the template then copy and paste the code around it (starting with <td> and ending with </td> then edit it to your liking. I assume you have some knowledge of HTML... each link is in its own <td> (table box) tag.

For your last question that is an option you turn on in vbulletin options, off hand I'm not exactly sure where but I would check 'thread display options' maybe. It is recommended that stay off if you're on a shared host because it is server intensive.