The one thing that most people fail to mention who suggest all the BIOS recovery software out there, is that if your PC does nothing, no post, no life, nothing on the screen, you are pretty much screwed. Downloading BIOS recovery software will only work if you can at least get the PC to start and attempt to POST. After all, if the PC does nothing at all, it's kind of hard to follow the "insert floppy and boot-up directions", right? If you have accidentally deleted or corrupted your current BIOS to the point the PC will do nothing, there is nothing YOU can do to fix it, save a hot swap attempt if someone you know has the exact same board. However, you can easily end up with 2 non-working systems if you don't know exactly what you are doing.
Try resetting the BIOS with the jumper or removing the battery for a few moments. If this doesn't at least get you something on screen, you have to either get a new BIOS chip, return the BIOS/Board to manufacturer and them reflash it for you, or just use this as an excuse to upgrade and buy a new board.