Step 1

macLAFFpkg(Jan-23-14).tar.bz2 to any place you like.
Just make sure all folder names in the path you choose do not contain any blank spaces.

Step 2

Double-Click the file you just downloaded to begin extracting its contents.
This should take anywhere from 3 to 10 minutes to complete.

Step 3

Open up the ULAFF folder you just extracted,

Drag and drop the executable to your Dock or control-click -> Make Alias,
and place it anywhere you like.

The very first run may take a little longer, and you might also get an "unidentified app" message. You can override this restriction by doing the following:

Control-Click the LAFF executable so that it shows
choose Open from the menu and then click Open to confirm.