Also make sure you installed the drivers.
If you have windows follow these steps
I realize you're using a freeduino, and that your discs had the drivers but it's possible they may be on the chip as well. Anything is worth a try
Plug in your board and wait for Windows to begin it's driver installation process. After a few moments, the process will fail, despite its best efforts
Click on the Start Menu, and open up the Control Panel.
While in the Control Panel, navigate to System and Security. Next, click on System. Once the System window is up, open the Device Manager.
Look under Ports (COM & LPT). You should see an open port named "Arduino UNO (COMxx)"
Right click on the "Arduino UNO (COmxx)" port and choose the "Update Driver Software" option.
Next, choose the "Browse my computer for Driver software" option. Finally, navigate to and select the Uno's driver file, named "ArduinoUNO.inf", located in the "Drivers" folder of the Arduino Software download (not the "FTDI USB Drivers" sub-directory).
Windows will finish up the driver installation from there.
^If the part in red fails to find the driver I actually just backed up from the FTDI USB and instead clicked on JUST the DRIVERS
folder. For some reason it found them when backing up one folder but it wouldn't load when going all the way into FTDI. hope this helps.