BKE is the better prog to use imo, the easiest anyways.
You have the wrong BYTE for your BK mate, you need to go into eng menu look on page 20 at the top and it will tell you the revision number.
I am on 3.5b at the moment and am having problems with finding the correct byte due to the VM update, but hopefully you will be on an older one and many bytes are available.
Let us know what revision your on and ill tell you what to do!!
Liam