Re: Help with linking pages/content
As far as viewing the full-size image is concerned, you could put a thumbnail in the wiki page that, when clicked, would open the full image in a popup window. See this page for the code I used for articles popups, which also works in wiki pages if you enable HTML. I basically used the image gallery template's popup window code, as I recall. I don't know how you'd do the shopping basket and payment functions, though.
-- Gary