Hi,
Our zoom effect doesn't virtually zoom the pictures. It uses the original product pictures (not the thumbnail one) in the zooming box (zooming box is the box that appears on the right side of thumbnail)
It looks very weird in your website now; because your product picture has the same resolution as the thumbnail. So there is no way to zoom the thumbnail. If you don't have high resolution product picture then it doesn't make any sense to use our zooming effect.
For testing purpose, upload some big product pictures, (lets say 900x900 picture) then you would notice the zooming effect does what it is supposed to does.
Cheers.
Flexible Forum Support.