Even so, the help file is still just about the best resource available. Use that while examining some (small) scripts and you can learn how things work. Yes, if you know nothing about programming, it's harder to learn to write a script in mIRC. That said, if you plan to learn, you should at the bare minimum have at least a decent understanding of math and logic. Without those, you're not going to do very well.
Tutorials are helpful, but in the end, the help file is more useful, imo.