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Ok, that makes a lot more sense now! If you do see errors though, drop us a line. Here's a post we did when we updated the directory last year that can also help give you some context. http://www.seomoz.org/blog/web-directory-submission-danger

No. But be sure that you only change the title tag on the pages and not any other meta data or anything else really. Google is more likely to ding you for a little bit to reevalaute your page, if you change more than the title tag. Dont change anything on the pages Let them get cached, change the title tag Let them get cached Then make other changes. Improving title tags will help. Cheers!

Another good reason to switch to Xenforo if you have to pay to have and SEO Friendly site. Thanks for your response. I have already switched 2 from vBulletin to Xenforo, so this is a good reason for #3.