you might try uninstalling Acrobat and reinstalling from the original media.
You may find that Acrobat and CS3 are, once they are both installed, inextricable linked and if one has a problem it may cause the other to nosedive
I am using OSX 10.5.8 and I cannot update my CS3 suite or even run Adobe Acrobat.
I have scoured the internet and nothing is helpful. Any suggestions for fixes are welcome.