ViOLATiON

Ok, in the past I have had alot of problems with my router, so i ditched it. Now I got this Linksys switch, and when I go start --> run --> cmd and type ipconfig it says my ip address is 192.168.2.10 which is the address of the modem.

The FTP Server, naturally, reconizes me as 192.168.2.10 aka the modem, therefore no one outside of my lan can connect to me. My question is how do I fix this. I'm pretty new to networking, but this is what I have plugged in to the switch:

Port 1 = Modem
Port 2 = Desktop PC 1
Port 3 = Desktop PC 2
Port 4 = PS2
Port 5 = Xbox

The entire network is wired, nothing is wireless. Any ideas? I am using BulletProof FTP and has worked with no problems in the past. I also have Cerebus and Gene6 if I need to switch.

Thanks for the help!