The tension wrench(torque tool) is used to bind the pins, and turn the lock. When you apply a light bit of pressure one pin will catch before the rest. You use the hook aka the feeler, or finger to push the pin to the sheer line, and then move to the next binding pin. You can't make pins bind with a pick, and pick the lock with it at the same time, plus yeah the pick would break if you could. If you push to hard, you will block yourself from pushing the pin.
I hope this clears you up a little, because the tension wrench is almost as important as the picks them selves.
Ball(full circle): wafer locks, you know the ones with square things instead of pins
Diamond(half triangle): a type of rake, which can also be used as a pick
C rake aka snake, and standard rake(the curvy one): a type of rake that is most commonly used when raking
Feeler(the hook shaped one): used to pick one pin at a time
http://connect.waag.org/toool/
the key has 2 videos there which give you a good visual reference.
Don't concern yourself with your other picks until you can use those ones
Primarily use the feeler to get good at "picking"
next time I would suggest you try to search a little bit on the forum (especially the "faqs" and stuff) because a lot of people seem to hate it when people ask so called "noob" question that you could/should have gotten the info by searching a little on the forum 