Good level - just finished it. When I finally figured out the boxes, I made a mistake with one, but lucky for me, you had put in an extra and I did not have to do it all over again!!!
I too loved Majics skating ghosts - it makes me feel in control, when they are trapped on the ice!!!
Yes - good level! I finished, but I kept thinking maybe I could've arranged the boxes another way - wonder if there's more than one way??? Oh yeah - ghosts on ice - the only way to love 'em - that darned ghost in the maze though gave me a little trouble, but luckily, I was able to dodge him (just barely) and get to the exit!
About the boxes, well two go into the right lake (with the ice-cube in between killing the ghosts), two go to the bottom area, and most of the others (not all needed) bridge the way to the coins by the cannon area and the Z-bot area.
I knew about some, but it was the others I couldn't figure out placement for. I didn't really understand the directions, but I tried something and it worked. I used all the boxes however, but since I got it done i guess it doesn't matter Thanks!