Yes, jig- or you can buy one on ebay for ca 2€.
BTW, are you sure you have the i9000 and not one of sub-models? Did you check your imei no? If you've flashed i9000 on one of its variants, it is bricked, only service can revive it then. I suspect this, did you flash with succes any i9000 rom before this?
Another question: did you wipe 3x before flashing CM zip file?