I didn't notice that until now; but the problem is I'm not sure how to get that. vB3.5 doesn't store the lastpostid made (where 3.6 does). So I'm not sure how to JOIN the post and thread table to grab the last preview text.
Try changing line 57 in vaispy.php to:
Code:
LEFT JOIN ".TABLE_PREFIX."post ON (post.dateline = thread.lastpost)
The potential problem with this is on one large site with 1 million posts the query takes 10 seconds versus the .003 seconds for the original one! So, I'm not sure this is the best way.
Edit: However, if I manually add an index on the dateline field in the post table the query drops to .008 seconds on the same site. So this can work, if you add the index manually; unless someone has a better idea.