atmega168 and ft232rl problem

hi. i have a breadboarded mega168 connected to a sparkfun breakout board ft232rl. everything works great except
i cannot upload a program with the breakout board . I can send and receive serial data though. I press the reset and upload but it just gives me
avr errors. Any ideas??

I suggest you to not post in two places the same question.
This can cause confusion.

And for the readers, reply here: http://www.arduino.cc/cgi-bin/yabb2/YaBB.pl?num=1216766108
It's the other post, already replied by Oracle.