Oh man, that's one hell of a conspiracy to enact your entire life and indoctrinate your entire family into.
How can this article claim that Westboro Baptist is liberal when they pretty obviously do not adhere to any classical or localized definition of liberalism? I wouldn't call them conservative either really, except in the Burkean sense of maintaining existing social order (anti-gay).
The money trail leads into liberal hands... Please see the link in the above article regarding Phelps' support for Al Gore.