I'm running vBulletin 3.7 RC1 and vBadvanced 3.0 RC1 as well and I'm trying to make it to where I can get the thread prefix of some of my threads to show up in the recent posts module. I don't seen an option in the module where I can turn it on.
Screen shot 2012-01-26 at 2.14.55 PM.png
When I look in my templates and my recentthreads.php - I don't see any code where the thread prefix is being called and I'm not quite sure how to add it. I tried but it didn't work.