developing embedded system on FC6?

[alwamo]

I am trying to use FC6 to develop embedded systems with uCllinux,
when I installing " ./m68k-elf-tools-20031003.sh", there is some errors shown below:

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[root@min min]# ls
download.sh rc
inittab uClinux-dist
m68k-elf-tools-20030314.sh uClinux-dist-20040408.tar.gz
m68k-elf-tools-20031003.sh
[root@min min]# ./m68k-elf-tools-20031003.sh
tail: +43: No such file or directory

gunzip: stdin: not in gzip format
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anyone have any idea what is happening? by the way, I used to use FC4, and everything is fine in FC4.