Category pages

Hi

I am using the suffusion theme and as far as I can see the issue I am having is a general wordpress issue and not something they offer support for.

I have changed the design of my category pages to differentiate them from my main blog page. I have changed the header and widgets. I use widget logic for the widgets and custom css for the header.

That all works fine.

http://www.thescottishgame.com/wordpress/?cat=5

You can see how the category page has a different design from the main blog

http://www.thescottishgame.com/wordpress

However when you click on one of the posts on the category page it opens the in a page that does not share the same design.

I want the category page and the category post page to share the same design.

I hope this makes sense

Please help