Finally, i have successfully flash stock ROM back to the device:
I did these steps (i did it before too, but now it works, only one chance was other version of the Kies):
Power off the device, pull out the battery, uninstall all drivers for Samsung USB, uninstall Kies...
Download latest Kies (2.3.0.12035_16_4) for USB drivers, install Kies, insert the baterry, power on device, boot into Download mode ODIN, start ODIN on PC, set archives of stock ROM (pda, phone, csc), plug the USB cable to PC and connect with the device, voila i can start the flashing...
Now i'm going to flash custom ROM on this stock ROM, second attempt, hope now it will works properly.
Thank you all.