bootloader and USB Board and Mac

well well well...

I've followed the instructions but no led Flash when reset card !
Do i understand that there is no bootloader on the card ?
I've tested with the 2 cards ! no flash led !

I've tested an export from Arduino-0002 and received an "Programmer is not responding."
when computer attempt to transfer the "TX" led flashs once in red...

Help 'll be appreciate !

regards