ok, the bad news is, i can't get it to work with encyption, and would be indepted to anyone who can. the 9800 uses either 64 bit or 128 bit wep, and the airport uses 40 or 128.

so, with encryption off on your airport, you should be able to link to your 9800, and if you go into the settings of pmm you can get the ports that pmm uses, and if you open system preferences/sharing/firewall you can open these ports for pmm. btw, the version of pmm i'm using is the beta version, so nothing new here.

finally, as an added precaution, i went into airport admin and used the wds function to list the mac address of the 9800 (you can find that in the "about" heading on the 9800). it probably did nothing, but i'm superstitious.

i think at some point i actually had it working with wpa encryption, but one of my computers is a windows machine and it didn't like this. hope any of this is helpful.