Wireless connection (PEAP with TKIP)

http://wicd.net/download.php

add deb http://apt.wicd.net hardy extras in the sourece.list
wget -q http://apt.wicd.net/wicd.gpg -O- | sudo apt-key add -
apt-get update
apt-get install wicd

open GUI by using wicd-client -n

goto Advanced Settings
check Use Encryption
select PEAP with TKIP

Identity = ID
Password = password
Path to CA Cert = path of *.pem file

press connected.