Variable for SEO'ed URL?

I am implementing facebook comments on my site and need to know which variable will get me the vbseo'ed url.

Currently I am using:

Code:

{vb:raw page_url}

But that is resulting in the non-seo'ed URL being used for the newer comment system that allows you to post as a page. If I use:

Code:

{vb:raw href}

I get the correct URL but then facebook will not display the newer plugin. Any ideas?

see: Facebook "like" Button for Vbulletin - vBulletin SEO Forums