Does this software simply allow a store owner to create a membership database tied to the store, or can it provide login authentication using an independent member database hosted elsewhere? We have a member database that uses SiteMinder by Netegrity/Computer Associates to do authentication, but I can't seem to find any off-the-shelf ecommerce solutions that work with SiteMinder. It doesn't seem from the limited info on their Website that Amember does what I'm looking for, but thought I'd check to confirm. There is no phone number to call a company rep. Thanks for any answers that you can provide!