According to the <A HREF="http://active-hardware.com/english/drivers/flashbios.htm" target="_new">Active Hardware</A> website (scroll down to Epox) the <A HREF="http://www.epox.com/html/english/support/motherboard/bios/tx.htm" target="_new">EPox P55TX2</A> might be the same as the Winco model you're looking for.
<i>It's always the one thing you never suspected.</i>