Well, they were purchased by Outland Sports a couple years ago. They had a link on their website until recently. There were rumors of bankrupcy etc and the link disappeared. You might look and see if it's back.

I just did a search and don't find it on Outland Sports anymore... but I did find this link. Sounds like they're a separate division or something. Anyway, here's a link that shows email, customer service, etc

http://www.outdoorsupply.com/apicustserv.htm