Played a little bit with includes, made the example working.
After that, I've made it working on the main code, and even modified a little bit. The main problem was includes, it seems. :/
Thanks for the great tutorial and explanation.
I'll probably will be releasing some version of my game. Of course there's a lot of things to do still, but well, maybe someone will try it and give me some comments on it.
So if anyone's interested - check out my blog.
Link's in my profile, not sure, if i can post a link in my signature or my posts.