Arduino compatible's serial port not showing Mac OSX
From the OSX System Report we learn that your board is based on an SiLabs CP2102 converter (or workalike), but according to your question you installed the drivers for an entirely different product from FTDI 

(Arduino.cc has used FTDI in the past and CDC/ACM today, I don't believe they have ever used SiLabs so their instructions probably don't cover that, but other vendors obviously have)

Install the CP2102 drivers and it should work if you use the /dev/tty.XX device which then appears when you plug in the board.

SiLabs appears to provide the drivers at 

http://www.silabs.com/products/mcu/pages/usbtouartbridgevcpdrivers.aspx

Just for sake of completeness, there are at least 5 distinct protocols/chips in use for serial-like USB communication with embedded devices:


FTDI 
CDC/ACM Virtual Com Port
SiLabs CP210x
Prolific PL-2303
ch340


(Additional possibilities could include actual RS232 serial or serial-over-bluetooth)