Hi, create a page with your enlarged image & any other details that you want to see like Buy now buttons & so on. Place all these details in the top left of the page & don’t center. Publish the page.
Now go to your page with the small image & d/click on the image. Go to the link tab & enter the code bellow with your details in the URL box & press OK.
Change the Google part to the page you just published.
Set the h/w you would like by changing the 500x500 part.
The left & top part is the distance from top & left side of your screen. 150X250.
HTML Code:
#" onClick="window.open('http://www.google.co.uk', '','width=500,height=500,left=150,top=50'); return false;"