Upload Sketch to Skinny

Hi!

I recently bought a Sparkfun Skinny board. I connected it via the FTDI-Basic breakout board to an USB-Port of my PC. But no matter what I do it won´t respond when trying to program it using avrdude. The green LED on the Skinny board keeps flashing and the TX-LED of the FTDI board is flashing two or three times. But there is no respond from skinny since the green RX-LED on the FTDI board never flashes. I´ve tried resetting the Skinny before programming but that didn´t work either.

Any suggestions?