Have you tried this: http://xdaforums.com/showthread.php?t=1044765 ?
This is the only method that successfully rooted the Defy for me with 2.2.2 stock Orange Modified CEE Android rom, maybe it works on your rom too.
This is the only method that successfully rooted the Defy for me with 2.2.2 stock Orange Modified CEE Android rom, maybe it works on your rom too.