Reason it did not work first time was because I made a stupid error! Nothing to do with infyways but they very kindly sorted what was really my problem.
I tried the free version first knowing full well that I would need a commercial version as I did not want my customers to have to creat a login before they could make a purchase. I was not to be dissapointed. The "Essential" version installed straight over the top of the free version without any alteration to my settings.
There is a wealth of Documentation if you have a problem and the forum seems very lively and responsive. I did have one small problem, you could descibe it as not seeing the wood for the trees! But, an email direct to Hilka with details to access the backend to the site and they sorted me within minutes.
Superb program and super friendly service as well!
Only90 minutes from buying to them sorting! Superb service, very much appreciated.
And of course the extension does everything I want and performs beautifully.