Help with debugging my file, ive tried everything

okay ive made a little spaceship game, but im having a bit of trouble with it. there seems to be some minor bugs, whcih i cant figure out.

<a href=“http://img148.imageshack.us/my.php?image=spaceshooterah3.swf”>http://img148.imageshack.us/my.php?image=spaceshooterah3.swf</a>

the attachment doesnt work, for soem reason so sorry to say, but heres the file at another location

http://d01.megashares.com/index.php?d01=b70c513

im stuck, and i need some help. the problem im seeign is that one of the dupilcated mc’s randomly gets destroyed. and i cant figure out why?