image sizing

[Guest]

http://www.icancomposites.com/product_info.../products_id/95

 

Im sure this has been asked.

 

You can see there small product image is small but are proportionate and when click it shows the larger version which is also proportionate. So do I need to add a mod or how should I set my image sizes. Wil % work?

 

Thanks

[Guest]

Ok it wouldnt let me edit my post.

 

Can I set the width or the boxes in the left column?