Hmmmm I'm not a tech-head, but dial-up wireless??? I suppose this means that the wireless router is connected to the net by dial-up. If so there might be a problem if there are several ppl logged on as there wouldn't be enough bandwith to cope. Dial-up often has an auto disconnect after a certain time so you wld have to look out for that.
oh yikes..didn't even read that it was wireless dial-up and used by loads.
you're screwed if that is indeed the case (Though I'd think the army would have something better than dial-up in place, surely?