Can't revert back from Android 2.0

I need help going back to the recovery image via a OSX. Below is what I am getting..

Code:

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error: cannot load 'bootloader-sturgeon-mec23l.img'
rebooting into bootloader...
OKAY [ 0.010s]
finished. total time: 0.010s
W/ (58966): Unable to open 'image-sturgeon-mec23l.zip': No such file or directory
error: failed to open zip file 'image-sturgeon-mec23l.zip': I/O Error
STEPHENs-Mac-Pro:~ HomePC$ fastboot devices
FFS7N15B06002296        fastboot

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All necessary files are in the same folder /android/sdk/platform-tools

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