I tried the upgrade from an older thibor (Hyperwrt 2.1b1 + Thibor12) to the newer thibor 15c and i get the message 'UPGRADE FAILED'. i have a wrt54gs v4. I tried rebooting, nothing. I did factoy reset, nothing. I tried the dd-wrt upgrade, nothing. I tried the upgrade from both IE and Firefox browers, nothing. I tried from 4 different computers, nothing. I looked around this site(and another) and internet (5 days now), nothing. PLEASE HELP. Thank you.