Decal should be facing front , under the seat, but on the frame itself , not the seat post.
Registration reduces the chance of theft and increases the chance of recovery.
The frame number is importan t, it can usually be found stamped in the frame under the crank bracket. If not, try near the rear axle or just below the handlebar. If you cannot find it, bring your bike to Stanhope Hall and a Public Safety Officer will assist you. Then bring the form to Stanhope Hall and pick up your lock. I accept your offer for a ULock to protect my bike.