Well, that little experiment didn't work so well. I still get all the same errors, can't find StyleableTextField, etc. What I find interesting is that the addresses where it appears to look for files in the error are Windows addresses, not Mac addresses:
"D:\flex_sdk\Sources\flex-sdk\frameworks\projects\framework\src\mx\managers\SystemManager.as:286"
This file does not exist on my Mac Machine of course. Is this the EXACT address that it is looking for things, or just an error reference address? If so, why would a Flex for Mac SDK and and AIR for Mac overlay be pointing to Windows addresses on a Mac??