HELP messed up rc.sysinit.author

[F1 Fan]

I was trying to get my XBox Media Center to stream my recordings from my Tivo,so i edited rc.sysinit.author on Wordpad which from what ive read was my 1st error,and then after i FTPed back i didnt make it executable(chmod +x) my 2nd error,now this are my questions.The only way to recover its by pulling the drive?I cant use the serial cable cause my rc.sysinit.author its no good?
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sorry for the double post,pressed Enter by mistake,Delete this one please