Okay nice, good to know I got it fixed as there was definitely an issue before. ^^
And yeah, Map Explorer and Item Collector can not be unlocked in the demo.
Hmm, not sure why save stations wouldn't refill health, I have to point out one thing though:
They only refill health up to a certain point, which is 100 in the case of the demo.
And no problem, it's the least I can do, your work deserves to be seen. :)