[TwinsX2Dad]

Originally Posted by ResaleBroker

The reason for this is to prevent potential duplicate content penalties with search engines since "archive" and "forumdisplay" already point to the post using a different URL.

You're looking at this the wrong way - the search engines don't see duplicate content with the last post column, unless they are linking to separate URLs with duplicate content.

On your forum index, you have a link to the forum, plus links to threads. The worst thing you have in your last post column is bookmarked areas of those threads - no duplicate, no foul.

If you're running an Apache Webserver with PHP (the chance is, you probably are), check your search-friendly archive settings (admincp|vBulletin Options|Search Engine Friendly Archive) and be done with it.

Yes, the archive lists one and the forum another, but the content is still not duplicated. To the unaided eye of the browser, the words may be the same, but to the eye of the SE spider, they are different pages. Look at the source of each and you'll see what I mean. Then consider that the SE spiders will generally look at one or the other, not both.