You most likely need to update the BIOS to the Latest version to support the FX series CPU. Taking it to a computer repair shop would be one way to do this.
You could also borrow an AM3 CPU (Not AM3+) such as a Phenom II or an Athlon II and get it to boot and install windows. Then update the BIOS after you get everything working. BIOS IS here: http://usa.asus.com/Motherboards/AMD_AM3Plus/M5A97_EVO/#download
Get the latest Version 1004.