Join a Hidden Wireless Network

Disable the SSID broadcast for your router. Your network will be hidden

Join a wireless network on Leopard.

Make your wireless network hidden

Join a wireless network on Leopard.

See what your Apple ID is

Find your Mac Address (Ethernet ID)

Manually configure your network connection(TCP/IP, DNS, WINS, AppleTalk, 802.1X, Proxies)

Setup proxies for your network connection