CSS Buttons - Change only the add to cart button to an image

[ksookma]

Hello there folks. I am working on a clients project upgrading and rebuilding the store on a subfolder dev2. The problem I face is that on the live site http://www.bil let-gr illes.com/4003-black-retractable-bull-ring-tie-downs-ss-set-of-two-p-4144.html you will see that the buttons are css buttons but the add to cart button is an image not css. Does any one know where to change the code so the add to cart button is an image but the rest stay as css buttons?

Thanks!

[mprough]

Search under tools developers toolkit for the image name and see how they did it to begin with

~Melanie