Blue screen appears after macbook froze and restarting

yesterday my macbook froze after trying to copy some files onto my hd. so i restarted it and switched back on only to find that the apple logo screen stays there forever and the system won't load. so i tried the apple support article number 306857 and used option c without success. i cant use option a because i dont have another mac and option b i cant use because my cd drive is broken atm. so if someone would be kind enough to show me exactly how to setup the commands so i could do it correctly, becuase i really don't understand how to type out the commands.

http://support.apple.com/kb/TS1545 shows these steps.
Start up in single-user mode by *holding Command-S after restarting the computer*. Note that single-user mode always uses the US English keyboard layout.
*Type these commands, each on a single line followed by Return:*
/sbin/fsck -fy
/sbin/mount -uw /
rm -rf /System/Library/SystemConfiguration/ApplicationEnhancer.bundle
reboot

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    The Regents of the University of California. All rights reserved.
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