Great, thats the profile and register solved, thanks!
Do you think you could check the settings on the Price Manager, Price Set Manager and Options? , If I try to make a purchase it doesn't register or confirm the size or price.... but it might be just me not having set the thing right in the managers. In the options manager I tried to put 0.90/2.00/4.00 as values, but it only registers 0.90, and "0" when I try to purchase a picture, and empty in the "Item and option price" window.
By the way, in the window "add image to shopping basket"..... what's the icon (an arrow) underneath the pictures which shows a small box when you click on it, but nothing happens? (I know that the "add" box is on the right of the picture)