Yeah the problem is I already tried that before I asked it just says sh: develsh: Operation not permitted
As to your question of why I want to downgrade? The answer is simple I don't like pr003 I have successfully done it before in the past through http://talk.maemo.org/showthread.php?t=99678 flashing 003 back didn't fix my cmt issue back then so i put my phone away in a box and recently rediscovered it wanting to repourpose it in some way and frankly would like to get back to 001 as it felt good