I can see both sides of the Sonitus comments, and another thing is that there are a lot of totally new users who will get a "first impression" from appearance only. A revamp of a GUI is not actually that complex, and aesthetics alone go a long way to a first time user/buyer.
 
Melda's plugins have that same initial "bleh" look about them. It took me a long time to get passed that and actually dissect them; and for some folks that first impression is the only one they will ever grant to something. So from the aspect of new users being impressed (and actually using) the Sonitus Suite, a GUI would benefit things going forward.
 
If people do not use your product, they are not going to buy add-ons to it anyway.

EDIT - SOLVED THEY WERE HIDDEN
 
 
This is all I get and seems just the compressors are missing, I think there is 3 on my Splat version. I'll check tonight at home. This is a Laptop I use at work. I had Home Studio and Splat on it but totally removed everything but the SI Instruments. 
So some of you are saying you have the compressors on a fresh clean install to a new machine? 
 
 

These are the default modules I see in the Pro Channel
 
This is on a brand new laptop that has never had any previous version of Sonar installed:
 

Bristol, that agrees with what I see in the installer. Cactus, if the PC76 and PC4K compressors are not shown in the menu make sure one of them is not already in use on the track. I explain why in msg #7 above. The one not in use should appear on the replace module menu.

Deleted 

The PCS-NukeCM.dll (PC76) and PCS-BusCM.dll (PC4K buss compressor) should be in C:\Program Files\Cakewalk\Shared Utilities\Internal
 

OK problem solved as per scooks insight. It's a laptop and of course the screen is small. I had poked around the edges looking for hidden views and finally managed to see what was hidden and there they are. Sorry about waisting time. 
I guess this is a defualt where it adds them automaticly to the track. 
 
Thanks once again Steve,, and for finding those, Also on this laptop those folders were hidden. Arg! 
 

Yeah, I was not clear, the replace module menu will only show the compressor not used when replacing the existing compressor. This goes back to the original PC design.

glad that got resolved.  

Bristol_Jonesey
These are the default modules I see in the Pro Channel
 
This is on a brand new laptop that has never had any previous version of Sonar installed:
 

How come that the Breverb2 is installed with a clean CakeLab install?