Where do I locate my firewall and proxy settings on an INSPIRON B130 DELL Laptop?

I'm just trying to change proxy settings and see how my firewall is connected so that I can use yahoo messenger.Where do I locate my firewall and proxy settings on an INSPIRON B130 DELL Laptop?If you have a network icon in your start tray (Lower right hand corner), Double click on it. Otherwise, go to Control Panel, windows firewall.Where do I locate my firewall and proxy settings on an INSPIRON B130 DELL Laptop?Go into your control panel and you will (or should) see your firewall icon, go from there.