No, I flashed Sourcery using CWM. Used the same method I've used for CyanogenMod... put the multiple zip files on the SD card, boot to recovery, "Factory Reset" the phone, then flash each zip file in order before rebooting.
But it does still pull a rabbit occasionally.
it works as it is stated if its not working for you maybe your holding it wrong...oh wait thats an iphone yeah just try wiping data and cache. also it will take a while to boot the first time. up to 4 minutes sometimes.