Cannot see the image sizes to edit in the admin area

Hi there,

I really hope someone can help me. I am running OC 2.2.0.0. I want to change the image sizes throughout the site. I went to system --> Settings --> Then my store list. I then clicked the 'image' tab.

Once in there I can see the 'store logo' and then the 'icon' underneath but that is all. There are no rows of image selections for me to choose and alter.

Can anyone please shed light on what might be the proble so I can start to edit image sizes?

Any help is VERY much appreciated!

it's in:
admin/index.php?route=theme/theme_default

Ernie

Thanks so much, I really appreciate your help.