Note: Appearance issues are often caused by caching plugins. When Posting Please Include Your URL. Search Forum Using Google Search Box Above IMPORTANT: If after forum login, you appear logged out, click on "New Posts". You should show as logged in then. It's a Vbulletin bug.
I'm not sure about the CSS issue. But I was looking at your site and noticed the Adsense was all about blogging rather than wine. You should install the All In One SEO plug-in and add keywords and description around wine so that Google knows that's your focus.