usairways.com: The United codeshares take over the US flights

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Hey,

I've tried to look up several fares on the website, including a couple of routes I've flown on US already, and I have always gotten UA flights, connecting through UA hubs. Is there some way I can only see US flights? (Please, no "you'd be better flying UA" or whatever. I know all of it. I just want to look some stuff up.
Can you tell us the routes you're looking at?
I've noticed the website bringing up United as first option if United is the only one with a non-stop or if the UA flight is the closest to your requested time of departure. Then it goes on to list every single flight available for the day. As far as I know there's no way to JUST see US flights.
Yet another reason to book with Priceline instead of usairways.com...