including vbSEO with VaultWiki

Looking in the Admin>Settings> vBSEO Google/Yahoo Sitemap Generator down to: Addon Generator Modules

I see an area to add

Quote:

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Set the addon module names here, one name per line. The modules files are located in vbseo_sitemap/addons/ folder.

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would I add this file in there? special_addon_sitemap.php

No you shouldn't do this, it's all handled by the vBulletin plugin system.