So I recently bought SONAR Platinum and I'm running into a problem...

Rapture and Dimension are included with platinum, however after installing everything there is to install, I can only find the standalone version of Dimension Pro and I can only find Rapture Session. Neither Dimension Pro nor Rapture Full show up in the instrument plugins in SONAR. Any help?

I'm not sure where you saw that Rapture Pro was included. Rapture Session was they only one I see and got. I keep getting an upgrade offer to Rapture Pro.
 
As to Dimension Pro, I can't really say what the issue may be. I had paid for the full version before I upgraded to Platinum. Maybe the path is missing in the plugin discovery paths?

Says on the buy page that Rapture LE full is included with platinum. I just assumed that was pro.

Regardless of that, the issue with Dimension still remains.

EDIT: I'd like to mention that I fixed it. For some reason, more paths needed adding in the plugin directory that I didn't notice. Just like you said. Thanks for the help!

Glad to help.

Rapture pro is a cool combo of dimension pro and rapture. You can have a lot of fun with those two.