http://paste.feed-the-beast.com/view/aea4f3a3
That is my log.
I have a 64 bit, and I have 3.75 GB out of 8 GB of ram allocated to FTB.
Edit: Wait, sorry, I'll try the instructions you wrote above and get back to you with the results.
Edit 2: Okay, it is still crashing. I reinstalled the pack...