I use templates all the time... and they really are simple.
I cut mine out of clear "plastic" template material. After cutting the templates I mark how many of that shape I need to cut for each block, the size of the block and the name of the block. If the shape is to be reversed, I will write cut 8 and cut 8R on the template. and to answer the other question.. Yes, there are a number of shapes in that block that should be cut "both ways"
they are definately directional..If you need more help shoot me a pm.. it's really quite simple and I'd be very happy to help you.