Well, okay... I called Lounge Burger last night and the gal I talked to informed me they don't book reservations past the 'dinner hour' on Fridays, so we don't have a reservation after all. Which means we might have to wait a little while to get a big enough table, but she said they ought to be able to seat us even without a reservation. Luckily we'll be getting there while the Flames game is on - they're really busy before and after the game, so we're coming in on the lull.
I guess our best bet is to all try to be there as close to 8:00 as we can and hope for the best!