Border Around Product Images

[Kayz]

I am using Zen Cart 1.3.8

I would like to add a 1px or 2px thick border around my subcategory images to help make them look more uniformed. Kind of like the website below.

http://www.world-of-entertainment-uk...index&cPath=66

My images are all different mainly due to being in different layouts, landscape and portrait.

Can anyone tell me how to do this. I want an even 150px x 150px border around each image, but only on the subcategory pages. The rest of my images are fine as they are.

The border should be the same color purple as the rest of my site.

I think that this will give the illusion that my images are more uniformed then they really are.

Any help with this would be great.