Importing a site's certificate in Vista

[JesusFreak84]

So being the parinoid freak that I am, I prefer to browse CAA at the https address. On my old XP laptop, I was able to import that certificate with no problems. However, with Vista, both IE and Chrome refuse to let me import the certificate. Oh, they'll show me information on it, but nowhere is the little "Install Certificate" button I used to shut the browser up on XP. So.....how do I do it? Help?

Danke!