Ok, first you'll need to reflash your recovery, try this one:
Techerrata Downloads - Browsing endeavoru
Download the latest version (2.6.3.0) and flash that using the same method as when you flashed CWM.
Once done, redownload the ROM from here:
CyanogenMod Downloads
You want the latest snapshot build, which is this one: cm-11-20140804-SNAPSHOT-M9-endeavoru.zip
Once downloaded, open the zip file (don't extract) and copy the boot.img file to your fastboot folder. Once done, mount the phone to your PC, then copy the zip file to your phone. If your phone isn't recognised as an eternal disk by your PC, head in to recovery, head to the storage menu, then select mount USB. It should then appear as a drive for you to copy the zip file over. When it's copied, unmount and flash the zip file as you did before.
When it's completed successfully, head back in to fastboot, connect the phone to your PC, then flash the boot.img using the same instructions you did before.
Let me know if that boots you in to the OS.
