Styles for co-brand

[Pollo]

Well, I have a site that wants to co-brand with my forum, but having a bit of trouble understanding how to accomplish this. After mucking it up a few times, I managed to get two styles going:

Regular HHO style: http://www.hosthideout.com/
Style #2 for the co-brand: http://www.hosthideout.com/index.php?s=&styleid=8

Yeah, Style #2 is the default vB one, just testing at the moment. Eventually it will look the same as the regular HHO style, but with different headers and footers.

My question is, when you load up http://www.hosthideout.com/index.php?s=&styleid=8 you can see the new style, but if you click on anything the style reverts back to the regular HHO one. Is this normal?

Obviously this isn't good for a co-brand and I must be doing something wrong.