I just saw an article on this in the newest Better Homes and Gardens magazine (November 2008 issue?) You might want to try the Better Homes and Garden's website. I couldn't get over how nice the bathroom tiles looked once the editors painted them. They don't look painted.
Login using the form on the top of the page to post feedback (if you are a registered user). If you have not yet registered, click here to do so. It's FREE!.