I can not reboot my Glaxy s 9000
As you have access to the recovery partition, you should find an update zip that you can flash to it.

Most likely you will have one on your SD card still, if you updated using the CyanogenMod updater.

Using the recovery menu, navigate to Install ZIP from SDCard and select it. You will then have to find the update .zip file. It may be in a folder called cmupdater or something similar. If you have a folder like that, find a zip in that folder and select it to flash. Erase your data, and try and reboot the device.

If that doesn't work, then I am afraid I don't have any more ideas sorry.