[kh99]

I've never done that before, but looking at the construct_phrase code, I see these comments at the beginning:

// #############################################################################
/**
* Construct Phrase
*
* this function is actually just a wrapper for sprintf but makes identification of phrase code easier
* and will not error if there are no additional arguments. The first parameter is the phrase text, and
* the (unlimited number of) following parameters are the variables to be parsed into that phrase.
*
* @param        string  Text of the phrase
* @param        mixed   First variable to be inserted
* @param        mixed   Nth variable to be inserted
*
* @return       string  The parsed phrase
*/

So this is untested, but I would think you'd want something like:

if ($show['pmstats']) {  
echo '<div style="font-size: 11px; padding-left: 5px; padding-top: 5px;>'.
         construct_phrase($vbphrase['private_messages_nav'],
                                     $vbphrase['unread_x_nav_compiled'], 
                                     $vbphrase['total_x_nav_compiled'], 
                                     $session['sessionurl_q']). '</div>';   
}

but it's also possible that I just don't understand what's going on....