SEO probs with VBulletin & value of sigs

I have just purchased vbulletin and have had lots of fun customising it. Wooh. It has bad standard seo. Shawn, I note that you have made a number of the changes - titles around the correct way, ... but how about the following that I have hacked for my own:

1. each forum has as its meta description, the description of the forum
2. each thread - the title include at the end of the title, the forum name ie "thread name, forum name".
3. and the biggy - rehash of the library pages. The killer of the beloved PR for our sigs is that there is a copy (rather than actual) of each of the thread pages.
   • keep the initial links http://forums.digitalpoint.com/archive/index.php/,
   • but change the links on example http://forums.digitalpoint.com/archive/index.php/f-5.html to the actual forum threads.
   • Note how the copy of threads do not have the html links on them - obviously no outbound links makes for bad seo for those pages.
   • Yet the copy stands to get the most PR, being only one step away from the index page/being shown on every page.
   • Having the copy standing in the way of the actual thread, means that the actual thread gets PR-1 than it should.
   • Then the thread needs the title of the thread into H1, currently showing only in <strong>.
   • Each thread also needs its unique description. I have made a kiwi number 8 wire version of this on mine using the title, then a standard phrase. But a better hack would be to do the webmasterworld version with both title and short description=meta description for each thread. Please let me know the hacks you do to get this one done. Adding new fields to mysql within vbulletin and integrating into vbulletin is a little above my one weeks vbulletin experience.
   • The last idea is that the footer include not only the library link, but a link to the forum that has the most/important posts. ie http://forums.digitalpoint.com/archive/index.php/f-5.html. Therefore, the most PR gets to these links.
   • Then you make sure that the pagination shows say the Google prescribed 100 links, and the page numbers of each of the other links pages (say first 20), rather than just the first 4 paginations. I note that you don't have any paginations on the above Google page yet.

What do you think. Can anyone come up with any more SEO techniques to apply to this forum. As much as anything, the question is to help me with seo for my version of the forum, as yet not made public.