So far, the mod rewrite rules are working for the formats we promised, and vBlogetin can handle them fine (without passing the userid). The big task here is going to be updating all the links to use generated links based on your URL settings. We probably have about 10% of them done so far (the really obvious ones), and we're probably going to leave a few as-is and do a quick redirect upon arriving at an outdated URL. Actually editing the links will bypass the need for vbSEO, but we will use its functions when they are available.
We are also going to shoot for generated keyword/description meta information for this release, but we won't include it in the release if its not ready when we are. If you guys can think of any other small SEO tweaks we should apply be sure to let me know.