I own an IPod Touch running IPhone OS v3.1.3. From my laptop, I connect to my work network using Cisco VPN software with a username/password and shared certificate. I'm trying to connect to the VPN from my IPT but I can't find a way to get the certificate onto the device. When I set up the VPN, the "Use Certificate" option is disabled. I downloaded the iPhone Configuration Utility but it uses the Windows PCS to find certs. When I try to import the certificate (a .crt file) into the PCS, I get this error: "The file is invalid for use as the following: Security Certificate". Am I missing something, can someone point me in the right direction please?