i have an ipod touch and i know the password for the wireless (wpa protection) but when i look at the ip it has and ip like 169.254.27.109 and a subnet mask of 255.255.0.0. it doesnt have a router number or dns number. i open safari and it says "Safari cant open the page because it cant find the server."
turn the wpa off, and see if you can log into your router tru Safari on your ipod touch, if you are able to surf, just reset the network settings on your itouch and turn your wpa back on, put in your key. Good luck.