Actually, I went through half of the tutorial last night, and I did notice what isn't explained the way it should. I sometimes describe things confusingly, because I was rushing to catch up the explanations on the actual development.

And the poorly described part is the most important one! (Client-Server architecture) I don't know why I've missed this before...

I will revise it some day, when I get the time. For now, anyone interested is welcome on my Private Messages page for a better description on the 'thinking' part