Right I have managed to sort out a problem with creating cutting files with the help of Adcnc, many thanks Adam, and have actually done two cuts tonight!!.
The material was standard 18mm thick plywood and a standard 12mm vee cut router bit, I didnt want to trash any good stuff to start with.
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Cut quality wasnt the best by any means but the machine functioned properly. First cut was at 2mm depth and 20mm/sec feed rate and the second one at 4mm depth and 40mm/s feed. I did attempt to video the second cut on my HTC Desire HD but the wife phoned and the end of cutting the first letter and knackered the video so I will try it again later in the week.
I think I deserve some tea and biscuits now

Ian