Root rooting issuses

[Trilback]

I have a Co-Working that has a Samsung Galaxy S that I am trying to root I followed the instructions for rooting it but I get this message, What am I doing wrong?

Reinstall Package


--Install from sdcard
Finding update package...
Opening update package...
Verifying update package...

E: failed to open /mnt/internal_sd/update.zip (No such file or directory)
E:signature verification failed
Installation aborted

 

[MAKFOTO]

This method is simple and works well. Choose your firmware then follow the instructions to the letter.

[29.06.2011][CF-Root 3.7] JP*,JS*,JQ3,JV1/K/B/H/O, JVI/P/Q - su+bb+2e/CWM - rfs+ext4 - xda-developers

Enjoy your SGS,

MAK.