Apparently, this is one of the most resource changing update in recent history. Affects numerous settings in the Kernal related to Airport, Login, etc. Thus the problems of losing the capabilities of very many basic items.
How long have you been working on the Tiger/Airport problem? Been to the Apple Forums? I didn't use Panther but a few days and didn't have Airport then, anyway, so my limited experience is with the space ship model and 10.4.3 & 8. It works fine except I can no longer have the stability of my old wired, router-based, permanently assigned machine addresses. Now, if the Airport
ever quits/restarts, I have to reset numerous apps and shared server aliases to the new IP addresses it decides to assign to things.