Option images to cart

Hi everybody
Anyone know how to do this:

I have a product with 5 options.
I select the product and a option and then I click 'Add to my cart'
The picture thats appear in my cart is the main product, not the option I had select.
Is possible to change this, and show in the cart the image of my selection?

Example:
Product: iPod Nano (Default in color gray)
Options: iPod Nano blue, iPod nano green...

I go to product 'iPod nano' then I select "iPod Nano Blue" and add.
I WISH SEE IN MY CART an iPod Nano blue.....

THANKS a lot

--------------------
KIMI
From Catalonia

See extension
http://www.opencart.com/index.php?route ... on_id=9459
for demo go to
ocextensions.co.uk