Hmm...
Is it only me, or do also other people do not see the whole tower crane, but only single parts of it?
Some problem here ;-)
/Max
It seems that you use some local parts or models that only exists on your computer. Therefore we can not see what you have build. If you are working on windows system, please try to import all unofficial parts and models into your mpd file, so we can see what you can see
Here are the parts to the Tower Crane in separate files.