most versions of winphlash have an advanced button you can press where you can tick a flash anyway option. I can't see if yours does as you have a window covering it but have a look and see it should be there.
thank you for your replies. I've found a different solution, There is another bios on Toshiba's website that notified as "Only for xp based computers" I download the bios for xp based systems and flash bios with using winphlash after flashing I canceled the autorestart and chose modded rom and flash bios with the modded rom again. @ phrunt; I have WinPhlash 1.6.6.0 and there is only 2 radio button as "Backup & Flash" and "Only Flash"
Open phlash.ini add: [UI] advanced=1 to enable advanced button.....then change the checkboxes (verify after programming ticked only...)