The image thumbnail size is much too small.

The image thumbnail size is much too small. Is there any way to increase the image size? Another better option would be to put a larger image above the line item. That way the customer could actually see what they are buying. Also, there is no way to add a description of the item. There should be a way to add an additional line below the actual item. How can that be done?

This is a re-post of a comment on Order Form Types