I have the same problem on Mac. All I see on the ModIII bar is CDAccess and PepBase, which are actually located in SFP:App:Bin, nothing to do with ModIII. I'm very confused.
I'm now using the modules from the old Modular II Pulsar installation in the modular III until I find out how to fix this. It seems to work. I wrote to support several days ago but have not heard back. I tried uninstalling the SFP and putting it back in again but that did not work.