It sounds like you are having some serious technical issues. Premiere Pro works fine in the Mac environment, I use a MacBook Pro myself. There is a FAQ page that goes over some of the information that can help us identify the issue. Please post the information that we ask for here - http://forums.adobe.com/thread/961741?tstart=0
For the updates, what you would want to do is launch Premiere Pro and then in the Help menu, choose Updates. That will launch the update manager.
I am on Windows, but do have some saved Mac discussions that may help
Mac and Root User http://forums.adobe.com/thread/879931
Mac and Playback http://kb2.adobe.com/cps/842/cpsid_84287.html
Mac and 2 Monitors http://forums.adobe.com/thread/876566
Mac & nVidia Driver http://forums.adobe.com/thread/1075592
I just tried to install Premiere on my new MacBook Pro as well but I'm still not able to playback the picture. The sound works but the playback screen is completely black.
MacBook Pro (Retina) OS X: 10.8.2.
Adobe Premiere Pro CS6: Version 6.0.2 (072 (MC:264587))
Source Footage: Quicktime (56 gb in one file): Apple ProRes 422, Linear PCM, Timecode.
I also have some smaller clips in this Quicktime Codec: H.264, Linear PCM.
No error messages. Sometimes the program just freezes and I have to force quit it. Or it just won't playback.
It was a entirely fresh install of the software. I'm a member of adobe cloud so I downloaded it from the application manager.
I'm also running photoshop and inDesign which are working just fine. At the time i launched Premiere no other Adobe programs where running. Just programs as: textedit, mail and evernote.
No third-party codecs installed.
Tried to update Premiere with the latest updates but that didn't do any difference.