Noel, thanks for replying. It's good to finally have an official word on this!
After having figured it out for ourselves (well, Colin did the heavy lifting, and Frank provided the sanity check!), there are only a few bits of very simple fixes that needed to be addressed, but they were elusive. As you say, it's fairly trivial after you know that.
I suppose most of our frustration come from the fact that both Colin and I *had* opened a case with support (several times over, in fact), but never achieved resolution... or even a contact point to help work through the issues. Somewhere in your communication chain things had broken down. There are all sorts of problems on the DevXchange area of the site, with links that go nowhere and forms that produce errors. A little investigation by the web team could help reduce these annoyances, and a word or two about the state of DXi/MFX in 2013 would allow devs a little more confidence that these technologies are still hostable (i.e. it's nice to know, explicitly, that there's no secret sauce!).
The remaining frustration, then, would be that if MFX is no longer being fostered internally, shouldn't something else replace it? Will SONAR get support for VST MIDI Modules and better MIDI busing in the future?
All the same, thanks again for the reply. I'll contact you later with progress on our working out a new boilerplate template.
Cheers,
- m