I have made a very stupid mistake. I wanted to test a new key that I purchased which I thought would be ready chipped for Ford Focus 03 reg. Well it wasn't and now the blasted ignition will not release the key never mind not start. How can I get the key to release from the ignition? I have tried placing my original key by the unchipped key to see if that would fool the system, but that did not work either. If I swapped the chip in my old key for the new key would that work?

this may be of assistance
http://fordtransit.org/forum/viewtopic.php?f=4&t=57293