Faladorian: Lvl 7 is pretty tricky, but it is possible. One potential confusion to clear up is that the HINT button displays the layer that _can't_ be moved. So that isn't a bug. :)
The main challenge is all those darn mountain layers and figuring out how they are supposed to interlock.
Thanks for the feedback regarding the hint not being helpful!
if anyone is looking for an easy way to generate your own retro / 8bit sounding effects I highly recommend SFXR (just google for it) by Dr. Petter. I know there is a windows version and I believe linux (and maybe mac too). project page here: http://www.cyd.liu.se/~tompe573/hp/project_sfxr.html
Firetaffer: you might get that warning when you are needlessly exporting a symbol that you don't need to. Edit the properties of your healthMeter movieclip and make sure 'export to actionscript' is unchecked. I got in that habit as all the earlier examples had you checking that box until the health meter. This is because that box only needs to be checked when you are going to actually write some AS code for the movieclip but in this case the tutorial has your write everything elsewhere.
 "TurnStyle"){kind=icon}
 "Shootorial #8"){kind=icon}
 "Shootorial #6"){kind=icon}