http://www.magentocommerce.com/wiki/doc/webservices-api/api/sales_order

There is no Sales_order.create function but I need one to create an order programmatically.

Look here for reference and sample: http://www.magentocommerce.com/boards/viewthread/28426/P0/

Also require a test harness for the api function.

A php file calling the api function so that the parameters that are passed can be changed and an order created from the test harness/file.

Prior magento api experience essential
someone who has implemented this for another site would be ideal.

Thanks,
Alistair

Ps. Footer links to your websites cant be added but more work will follow when job well done.