New Job… this Network is a mystery

Although I have a 2-year degree in CIS, the network at my new job eludes me. It appears to be a peer-to-peer using Win98 and ethernet… but there are 15 PCs here. There is a frac T1 through a Cisco router, and they are implementing a VPN soon. I realize I’m new at this, but isn’t this place begging for a client-server network???