Sure, although there's no content there right now: https://www.familybrown.org.
No, I mean you're serving the wrong intermediary cert. The way that WinXP compatibility was achieved involved creating new intermediate certs, and any new certs signed since that date are signed with the new intermediate. The old intermediate was X1 with a backup of X2; the new one is X3 with a backup of X4. Your cert was issued by X3, but you're serving the intermediate of X1.