Try to install Clockworkmod Recovery, always getting stock recovery I'm trying to install Cyanogenmod on my Samsung Epic 4G.  I've tried a couple of ways to get Clockworkmod Recovery on the phone, but every time I boot it into recovery mode I get the stock recovery program.  I've tried the method listed on the Cyanogenmod wiki here and one using Odin here, but every time it boots, it loads up with stock.

Does anyone have any ideas for how I can get around this?
It looks like the key was holding down volume-down, power, and camera buttons until the capacitive buttons (home, search, etc) lit up, which was longer than until the screen flashed (as stated in the CyanogenMod wiki).