Great that's what I was needing
One thing to add to your help, when I uploaded the xara html files to my site theme folder it didn't occur to me that my theme would need the images from the default theme that scripts were calling on for things like the shopping cart icon, buy now buttons etc. ( it probably should have occurred to me but it didn't until these images didn't show up) I uploaded a copy of the images folder from the default theme into my custom theme and that fixed that. But this could easily catch others.
I might look at replacing some of these images with images that match the site colours etc. I assume that as long as the images are replaced with images that have the exact same name it should work.
When I go to Insert/Edit Image the thumbnails in the file browser aren't showing.