UPDATE:
This is an annoyance at most so if there is no answer to it that is fine. If I try to install drivers and click finish, I get the usual yellow exclamation point devices in Device Manager but the new hardware found wizards don't come up anymore on subsequent boots and since the existing network card I put in is working fine and there are no other messages at boot up to indicate problems and there is no functionality lost, I'm going to consider this solved for now.
This is an annoyance at most so if there is no answer to it that is fine. If I try to install drivers and click finish, I get the usual yellow exclamation point devices in Device Manager but the new hardware found wizards don't come up anymore on subsequent boots and since the existing network card I put in is working fine and there are no other messages at boot up to indicate problems and there is no functionality lost, I'm going to consider this solved for now.