After eliminating my hard drive from being the reason why my computer wouldnt boot windows me(whose disk I'v now lost

So my motherboard(epox) is an ep-8kta2 via kt133 agpset, whose bios serial numbrer is 01/10/2001-8363686b-6a6lmpa9c-00. I downloaded a new bios from th epox website. However,on flashing(alt-f2) I get a screen with a box(looks like DOS)asking me to type in a space labelled"filename to program" Firstly I don't know what to write here and secodly I have an error message at the bottom of th box in Red!?Why as I got the bios from the manufacturer.....Hope you can help my address is aesbrown@hotmail.com.
Thanks for reading to the end and any help you can offer
Alex