On my Mac I can see that Cafetran uses either the Mac OS X file selection dialogs, or the cumbersome Java dialogs. On Windows I assume it's the same.
It would be nice to get rid of the Java dialogs and to use exclusively the system dialogs. It would look less vintage, less 80', but it would gain in efficency :-)
>cumbersome Java dialogs
Actually there are very few Java dialogue boxes left on CafeTran Mac. The Project file chooser is one. Most others have been upgraded to the OS X file chooser.