Hey- Seen a lot of posts, no definitive answers. I'm trying to use an Airport Express to connect wirelessly to my WRT54G (Tomato 1.17) w/ WDS so I can connect a DirecTV PVR to the ethernet port. Also want to use airtunes to my stereo. I can see the Airport Express show up in the device list, but it is unable to get an IP address. Has anyone got this to work w/ WPA enabled? Thanks!