lol i dont understand its not site map its archive pages that it not the vbseo lol i using vb & vbseo from last 2 yrs there r few things to be cleared
1.
vbseo &
vBSEO Google/Yahoo Sitemap Generator r 2 different mod
a.
vBSEO Google/Yahoo Sitemap Generator (Which free) :
* Auto-generates a Google XML sitemap for all of your specified forum URL types (including vBulletin Blog URLs).
* Auto-generates a Yahoo text sitemap for all of your specified forum URL types.
* Auto-notifies Google when a new sitemap is generated.
* Automatically sends you a summary of the sitemap generation via email each time it is created.
* Includes only publicly accessible forums and threads.
* Allows Google/Yahoo to find all of your forum URLs without having to spider the forum to find the links.
* Allows Google/Yahoo to find your forum URLs without having to account for query string and/or session ID information.
* Allows Google to give precedence to crawling your higher priority forum pages.
* Allows Google to give precedence to crawling your forum pages that change more frequently.
* Allows you to conserve bandwidth by more efficiently facilitating the crawling processes for GoogleBot and Yahoo Slurp.
* Is 100% compatible with the static CRUs (Content Relevant URLs) used by vBSEO-enabled forums.
b.
vBSEO (Which is paid ) : for feature & use
Code:
http://www.vbseo.com/en/feature-matrix/
2. both of these wont help u with archive pages just use the mod properly