Hi All,
I hadn't seen mention of it on the mailing list yet so I thought I'd post it.
It seems the wildcard SSL cert for *.centos.org has expired. Since the www.centos.org stuff references its CSS via the http[S] urls, the CSS and images are now missing from http://www.centos.org/
"The certificate expired on 7/16/2010 7:23 PM."
Mike