How to re-install Premiere 8.1 (having MXF issues)

Question

Since upgrading to 8.2, I can't export MXF Comps without getting intermittent red flash frames. I have done clean installs of the newest 8.2 twice on my Mac Pro Late 2013 with the same results. The current previous install files on the CC server are for CS6 and CC, nothing for CC2014.
I should have known better about being one of the first installing an update. Currently I have 8.1 on my laptop and am using it as a work around, but my work flow has slowed tremendously.
System: MacPro late 2013, 28g of memory, running Mavericks

Answer 1

Yes, I did post this question in several threads. And I did reach adobe support on the phone and chat. After almost 2 hours of an Adobe person somewhere in this planet connected to my computer, and my watching while my client called desperately, he basically opened the project in AE, then saved it as a premiere project, opened it again in premiere, rendered it, export it. And while the red frames were gone indeed, hundreds of transitions, effects and so on were gone. He said to go ahead and fix them. It would basically would take me the whole week working round the clock. He said he didn't know why this happened, how could this by fixed, and didn't know either why Premiere kept crashing while loading media. After a while he started taking much longer to answering me in the chat, until I decided to call adobe by phone also. When I did the person on the phone asked me the name of the person in the chat support, his name is Naseem. Then he said he would speak to him to see what was going on and what steps he already took. Suddenly the chat window got disconnected, and the person on the phone hanged up. So im still stuck with either the red frames, a crashing premiere, or dozens of hours of fixing the premiere projects by following the steps he took through after effects.
And yes, I am very desperate, if I loose this client I won't be able to pay rent the following month or so. Premiere and AE are tools I use for work, I didn't knew about this bug, anything, nor I know what caused it. The project Im talking about I worked on it since last summer till january and everything was fine. I didn't use it in february, then the day before yesterday I open it again and the red frames appear. Without me doing anything to it. It was finished. I was just going to render some sequences.
This person Nassem said that its a possibility that I have a bad graphics card driver, but I don't know enough in that end to know for sure or try to find out. Also, in the support chat, I selected the conversation to be send to me email at the end. I received the mail, it says I was connected to Naseem for almost 2 hours, but the chat is  edited, gone, only the first few lines and the last goodbye are there. Very weird.
Please forgive me if it upset you for posting several times, but Im more then desperate, way more, and I though maybe somebody in one of those threads had been able to fix it and could help me out. If I posted only in one thread the people involved in the others wouldnt know. It doesn't really hurt anyone to see my ordeal in a few threads, I thought, compared to my problem.
I will try to transcode the footage, but it would take loong, its several weeks of shooting from 5 am till night, lots of clips, long and short, etc.
I am very very disappointed to Adobes Online and Phone Support. Its not worth the monthly membership Im paying for CC.