You should be able to go from 1.0 to 1.4 without problems, provided you have the correct patch.
As for the Priest's Icon, I'll give you a hint, the answer may lie above your head.
#16
"If toast always lands butter-side down, and cats always land on their feet, what happens if you strap toast on the back of a cat and drop it?"
-Steven Wright
-Steven Wright