Steam pipe puzzle

I really need help on this one. I can't seem to get around those blocks sticking out of the wall. I get half the pipes connected then can't figure out how to connect the other half.

Sudiebpet, since this puzzle is random generated, it's different in each game. A couple of things to remember. You can change positioning of the pipes by clicking on the green slices on the pipes. Also, you do not have to use all the pipes.
Good Luck

Sudiebpet.... Cesse is right that the puzzle can be put together in different ways and you don't have to use all the pipes in the scene. I never have. But I checked over at Gamezebo and they had a screen shot of the finished puzzle..... and they used ALL the pipes. That must have been a lot of work. Now I need to try and see if I can do it by using all the pipe parts.