[CentOS] Problem.

Greetings all, I am using Centos-5.3 in my server which is running dns, apache and mail. When the power went off and back then all of my services are not be able to run, i visited log files esp for httpd it says read-only and httpd cant start, this cause all of my services to stop. i tried to fix by fsck but still i cant be able to log in my mails via web access because httpd is not running, in short all services stopped. I need help, what to do so that to change the read-only mode, i cant even delete any file. After running fsck and reboot now it reached:- (none) login: and if i type root gives incorrect. Please help me so that to get back my mail server online (mails are in this server). regards, Damas