My supplier says -

If you prefer and have the know how you can install an appropriate script on your site and have our products installed on your website with a click of a button using our XML data feed.

We have provided documentation on the feed structure below so you are free to write your own script but most of us that do not know how to do this will need help.

Value Name - e.g. colour, size

Price prefix - +, - or blank

Price adjustment value - Amount, e.g. 1.9900

Would anyone be able to make the script, im willing to pay.