there is no WPA2 option in authentication list.
As you can see at http://en.pardus-wiki.org/Pardus:Installation2009#Wireless_configuration
the Security type for WPA2 (or WPA2 Mixed) = WPA Pre-share.
Read the manual over there.
After applying "Scan " and
"Select at  the connection", the type of key is automatically detected (and filled-in) after Security type:
it is asking for password not the username.
You have to supply the value of the key and not
the password of the user.
but without authentication it is connecting..
When you are in this situation what's the result of
in a konsole