Image Zoom on MouseOver – eStore

Hi all.
I have the eStore theme installed on my Wp.
Do you know how to set the “image mouse over” or “enlarge the image on mouseover” – I want this only in my index, my first page just, not in single…

I mean, i want to do s’thing like this: see website “art149.fr”
When you mouseover an thumbnail, “voila” ??

I searched, and researched, but nothing’s good. I need some advices from you.

Many thanks. Have a nice day and a lovely week!