Here's what's going on with everything.
Long story short, we ended up processing the international orders ourselves. So DDBProductions and I met up and got those all taken care of. We have a scheduled USPS pickup today (July 28th). Allegedly they'll try to pick them up on their normal route, but it's literally over a half-ton of books. I spoke with USPS on Saturday, and they said we'd be fine and they'll figure it out. So

I will probably send out a mass email to all the international people once USPS actually picks them up.
Edit 2014-07-28T14:45-0400: USPS came by and picked them all up. So everything is en route. And I'll send out those emails tonight.
Sorry about the slow response time to emails and whatnot. I've been a bit focused on taking care of the international orders. I'm pretty sure we're all caught up now though.
Regarding Canadian orders: I'm waiting on a response from our distributor about those. I really would've expected tracking to work since it's been 7 days since they shipped. But I'm honestly not sure what's going on.