The mapping of this game is now done and submitted to JonLeung. I ran it through PNGGauntlet and it reduced it from 2.16 MB to 686 KB for a reduction to 31% of its original size in just over a half an hour.
Here is the scaled down version of of the map.
http://img267.imageshack.us/img267/6963/quovadthfl9.pngThe fifth and last clue near the bottom reads as:
BE SWEET AND BE QUICK TO GO BACKWARD
Next to that clue is an object to grab and take back up where the game started.
Here's what you get when you get back with the object. One more message...
When you hit return, you'll see the title screen with the final score, like this...
That is all for QuoVadis.