I got it up and running. Installation is pretty simple but could the app could use some tweaking to get it running a bit smoother on our Vibrants. Here's the app minus some tweaking by LG apparently.
1. Copy the "3rd_Party" folder to the internal SD card (just my preference as I'm writing these instructions from that location)
2. In command prompt enter the following commands and hit the enter key after every line:
busybox cp -r /sdcard/3rd_party /system/
4. Fire up Astro or the file manager of your choice and install.
You might experience some slowness and FC's when selecting media to add to the storyline, but pretty much else runs fairly well. Lemme know what issues you have.