I have written this system now it can create products, update stock , and create orders - update those orders. This system is mainly designed for use for food takeaway places and possible other small companies . the only bit left is some functionality with Units of measure that I have written but just need integrating into the stock ejbs. So if anyone is interested in it I could email the ear file to them to evaluate it .
It has been developed on Linux and works under Jboss 3.2.1
If anyone is interested in taking it further and adding further modules I would be interested to hear from you ..