Can't find reatune on Reaper 3.76!!

[joshtegrity]

maybe I'm missing something, but I can't seem to find certain plugins that are supposed to be included in reaper

I looked over this thread: http://forum.cockos.com/showthread.php?t=60945&

and none of the solutions posted there seem to have solved my dilemma.

I'm using Mac OS X Leopard. v 10.5.8 Reaper version 3.76. The device I'm currently using is the Built In Output.

I just want to know if there is any other possible solution, to this.

If not, are there any mac compatible 3rd party extensions that I could download that would achieve the same effect?

here is a screenshot of my plugin list