Because IM can be very tempermental, I think you need to provide more details with what you do in IM. You should talk about what parts of a car are best to drop points on, what dropping points does, etc. Since this seems like a tutorial for people that haven't used IM before, you may want to talk about common troubleshooting, or errors that people could run into, and treat this tutorial as if someone hasn't opened the program before. You aren't very descriptive in your words, like you said you would be, considering there aren't any images.