If I am not wrong the free chapter grabbing is no longer there, this update you need the Expansion pack to play anway. I could be wrong but all old chapters should be available for everyone (I could be wrong here)
I have the expansion and just picked up the chapter. I assumed it was like before, free if you logged in within a certain time frame. But they did change a few basic long term mechanics, like dailies, etc. I don't know the new rules yet.
