Well, since several people have asked for help, I'm going to embarrass myself by posting my walkthrough.
It's obvious that there are lots of different ways of doing this - looking at Bob's comment about the breaktile, and Lisa's comment about the conveyor button
I find it impossible to make a puzzle with only one solution, and I usually find the hardest way to do things - sorry folks!
Don't look if you don't want to.
371LIZM – PQ15 The Kidnap
Walkthrough
1. Get Stinky through the blue TPs, left and then down.
2. Walk round the wall and push the cannon 3 spaces left as a stopper for the blue sphere. Push the sphere right and then down. Quickly push the cannon to the right above the TP, and stand below the conveyor. When the sphere lands left of Stinky, push it right into the barrels and follow, walking round to push the left cannon 5 spaces right, taking care not to shoot Loof.
3. Switch to Loof and as soon as the bridge is complete he walks left and up into the alcove. Leave him there for now.
4. Stinky pushes the remaining barrel down, right and up through the lower TP and into the water. Then push the left cannon right, up through the top TP. Walk down and push it back up through the lower TP and into the water. Push the other cannon left to and use the break tile to push it down, right and up through the lower TP and into the water. The bridge to Loof is now complete.
5. Loof can now collect the right side bonus coin, taking care not to get bouldered. Then he crosses the bridge.
6. Stinky stands on the conveyor button. Loof pushes the boulder left and up and goes to stand on the sign by the parrot. Stinky pushes the boulder left, collects the coins bottom left and goes to stand in the corridor above the white button. Loof pushes the boulder down and left. Stinky pushes it onto the white button.
7. Both can now exit.
EDIT: I've just got this message from Annedanner and you may want to build your bridge this way for the cool effect:
Did you know:
that when building the bridge to Loof if you do the cannons first then the barrel, the barrel explodes and Loof and Stinky can then walk on water!!??