Zipit Wireless Messenger device

My zip it says - it recognizes mini sd but when i look for it under mytunz - Mini SD is not there. Music is on the SD. Any suggestions?

Zipit only supports an open authentication and a long preamble. Follow the steps below to setup your router. Note: If you are using WEP encryption, your network will be less secure when using an Open Authentication. You must also set your wireless clients to an Open Authentication (or Auto). Step 1 Open a web browser and enter the IP address of the router (192.168.0.1). Step 2 Enter the username (admin) and your password (blank by default). Step 3 Click on Advanced and then click Performance on the left side. Step 4 Set the Preamble Type to Long and the Authentication to Open System. Click Apply to save your settings. Note: Depending on your firmware version, one or both of these options may be in a different location (Home > Wireless).