Where are all 6 loose nails in the Marble Scene for the Wii game Ultimate I Spy? I can only find 5.?

My son had this problem as well. He finally found all six: there are two on the table with the hammer and the catapult; there is one on top of the book next to the toy ferris wheel; there is one next to the blue triangle; one on top of the cardboard box; and one under the tracks the marble rolls on. Hope this helps.