I need help installing Fedora (Linux). Where is the BIOS?

I am attempting to install the latest version of Fedora onto my Dell Latitude D610. Following the directions on the Fedora website (fedoraproject.org), I’ve downloaded the ISO image and turned it into USB Media on my flash drive. Now it says to turn my computer off, turn it on with the media (the USB drive) connected, and ‘boot from the media’ using the Basic Input/Output System (BIOS) that should appear when booting up my computer. Problem is, when I boot it and push the key (F1, F2, F3, and Delete all take me to this same screen), it gives me the option to start up Windows in a number of ways or to use some ‘diagnosis’ tool I don’t need. I don’t see any “BIOS” option. Could somebody help me out?