one thing about wpa-psk is that it adds additional security. However, by giving out your key, you just completely defeated that purpose. First rule of security is that you never give out your passwords/passphrases.
It sounds like you may have figured out how to set everything up, but here is sony's instructions:http://www.us.playst..._psp_iw_IN.html
For WPA security protocol to work, both the PSP® and the WAP (or wireless router) must have exactly the same settings:
* The WPA key must match exactly.
* The WPA key must be from 8 to 63 characters if using ASCII (all letters and numbers and a few special characters), or exactly 64 characters if they are using hexadecimal (numbers 0-9 and letters A-F).
* The access point must be set for and support WPA-PSK (TKIP).
* The SSID of the access point must also be entered into the PSP® exactly as it is in the access point.
In addition, the same rules regarding wireless connectivity apply to WPA as any other encrypted or non-encrypted wireless network:
* The PSP® must be within range of the access point. A strong signal from the access point does not mean that you will not have connection trouble. The PSP® may not be able to return the signal if the you are too far away.
* Check the environment for objects that might interfere with a wireless signal, such as:
o 2.4 gigahertz cordless phones
o Bluetooth wireless devices
o Microwave ovens
o Fluorescent lighting
o High powered audio equipment
o TV sets or computer monitors
o Electronic insect "zappers"
o Any other electronic equipment that may produce Radio Frequency (RF) interference
* The more devices that are trying to connect to a single access point at one time, the less the chance of a stable connection. Dividing the available wireless bandwidth among too many devices can cause problems.
The real key to success is that you choose a long key and enter it exactly the same both on your router and your psp.