Arduino Nano 168 bootloader

Hello all! I have a nano168 which i`ve changed the chip. Now the problem is uploading the bootloader to the board. I have paralel programmer (schematic from the arduino website). When i try to burn the bootloader with the arduino software it says that the chip signature is not good and finds a mismatch at the first bit of memory. Do you have some ideas which can help me fix my problem?

Best regards, Vlad.

How are you trying to burn the bootloader? Through the IDE?