The Browser displays all my of VST Instruments, but NONE of my VST Effects. I can add my personal fx in the FX bin by Right Click -> Insert Audio FX and go from there, because they're actually listed there. Is there something I'm missing?

Answered previously here:

http://forum.cakewalk.com...ead-This-m3149183.aspx

lawajava
Answered previously here:

http://forum.cakewalk.com...ead-This-m3149183.aspx

I saw that earlier, but unfortunately it didn't solve my issue. It's weird because my VSTi's show up Instruments, but only my Effects don't show up under Audio FX.

Got it. It worked by deleting the Platinum Effects menu layout.
 

There are separate layouts for effects and for instruments.

If you refer to your previous Sonar edition's layouts for those you can copy them into your similar Platinum locations and the list you're familiar with will become available again.

Assuming your new install is looking for VSTs in all the right places on your drive(s).