GPS Data Logger Software - BT747

I am trying to connect a Blumax GPS-4043 to my MacBook using Bluetooth in order to download tracks.

I have managed to get this to work using BT747 but only under the old interface. I did this my editing the bt747_macosX.command file, adding the following lines:

POSSIBLE_PORTS="$POSSIBLE_PORTS /dev/tty.BlumaxBT-GPS-SPPSlave-1"

java -Djava.library.path=${ROOT_DIR}/rxtx/ -Dbt747_port="/dev/tty.BlumaxBT-GPS-SPPSlave-1" waba.applet.Applet /w 250 /h 250 /scale 1 /bpp 8 BT747

I have also added the /var/lock file with the following two commands:
sudo mkdir /var/lock