Yes, you must install 02d before 02e before 02f (RC3)
Full 02d is cumulative; all previous patches are in this packet.
02d is just for gamers playing with 02c
02e is just for gamers playing with 02d
It's very important to install all files in the good order.
JMM
PS : right, I have to build a package 02e with all patches... soon the official 02f. For this event, I am going to build a full package 02f.
Sorry for this system.. No sure I can't do another thing.