You are welcome!
You will need to wait for a Mac expert to chime in on how you can ceck as I am a Linux guy myself....
As far as the original Q goes... Anything on the microSD card will NOT count towards the memory on the device....
If you have images or songs on the device then move them to the media card...
Applications have to stay on the BB but songs, video, music can all be moved from the device to the card....