Lots of possibilities (maybe you flashed the wrong BIOS), but the basic problem is you now have a dead motherboard. Check the FAQs on the main
www.wimsbios.com site for "My motherboard is dead", but if you have nothing on the screen you are probably looking at either the hot-flash recovery technique, or a replacement BIOS from
www.badflash.com or the mobo manufacturer.
You told us what file you used but not what your motherboard was....