Premiere Pro CS5.5 Won't Open - Mac

Question

At first I had problems with AE not opening (hanging at "Initializing Media Core") and the dynamic link to some of the composiitons in my PP project, so I called support. I spent an hour and a half with a lady controlling my computer, and my AE problem seemed to disappear. We hung up, and then I opened my PP project again, and the dynamic link 'started' to work, but then PP randomly shut down. And now I have a PP problem...
I tried reopening and it loaded the project, glitched a little bit on the screen, then it said "Sorry a serious error has occured that requires Adobe Premiere Pro to shut down. We will attempt to save your current project." Now I get it EVERY time I open a project.
So I called support again, and after spending 3 hours with a guy, he told me I had to create a new user account and migrate all of my information there, but he said he could offer me no assistance in this area. I must find out for myself. So I followed the instructions here.
"pick a short user name for your new account. then run the following terminal commands
sudo mkdir /users/newshortname
sudo ditto ~ /users/newshortname
You'll have to enter your admin password (which you won't see) after the first command. that's normal. This will copy your current home directory to /users/newshortname. Then go to system preferences->accounts and create a new account with the short name newshortname. You'll get a popup saying that a home directory by that name already exists and asking if you want to use it. say yes."
As I figured (after waiting a day for all of my files and preferences to transfer to the new account) I had the same problem. I've tried deactivating, re-installing, removing the media core and then putting it back (with the help of Adobe support), and nothing is working. I'm running Mac OS X 10.6.8.
Someone, please offer some assistance. I have been out of commision from editing for three days now, and I have a bunch of deadlines coming up.
HELP ME!

Answer 1

Hi Vinay,
1. I am using third party plug ins, and I understand that might be causing an issue, but I've also tried opening a new project with nothing in it at all, and that won't open.
2. Premiere Pro quits after the project loading bar or after I create a new project.
3. I used a lot of files! mov, mts, psd, ai, png, jpeg, and AE compositions through dynamic link.
4. The project has about five sequences. They range from 1 minute to 4 minutes.
Thanks!