Different Image Sizes

[dragon03kf]

Hello everybody i just wanted to know how to make product images different sizes for example if you click "SHIRTS" is fine the way it is there but if you click "GI's" it only has 2 products and a lot of dead space is left i wanted to make those two pictures bigger so it can occupy some more space.

this is the link to my page

http://www.protectedpro.com/gomgi/

if anyone could help i will be very thankful.

Thanks.

[bobdog]

It is your background.jpg that is taking up the vertical space.