Apologies for hijacking an old thread, but question is close enough that it doesn't warrant its own

I'm booked on a 2-class 747 (TPE-PEK) and I can see that the first cabin is open as business, but cannot select seats in the first cabin. According to EF, some are already allocated but this isn't reflected on the CI website, so I'm well confused. Are these seats only available to CI's own elite members?