i instal wifime( the update one) on pda and connection is correct; but i cannot connect to internet.
If you can ping the PDA from the computers on your LAN, then the wireless connection is well established, and probably you don't need to touch any of the parameters in WiFi section on the wl500g. Try to ping the other computers from the PDA. If that works, check the DNS configuration. One other thing to mention is the MAC filter on the Internet Firewall page on the wl500g...see if you have some restrictions there.
"What's the color of a chameleon put onto a mirror?" - Stewart Brand.