Hi Blane,
Spend today a lot of time on Q7B and OSX 10.6.x and 10.7.x and have found some bugs and reported them to Bernd.
One of them was that Clean and Rebuild all isn't working as you also found out
I have ported 3 applications written under XP with minor changes to the code.
But with one of them i got the same 'Install' error as you get with the MDI example and did spent a lot of time to figure out
what was going wrong not only pulling out my hair but also growing more grey hairs
At last i found the problem was using a single \ in a string and i realized that is an Escape code so when i changed the single \ in a double \\
all was working fine.
There are some more issues with Q7B on OSX and i have reported them so we have to wait.
I left out support for 10.4 that one is really not supported.
Did you try some more examples ?