ATMega 1280 drivers

I have try to install the drivers for the Arduino ATMega 1280 in Windows Vista but i can't First in the Arduino drivers folder there is only for UNO and ATMega 2560 and in Device Manager i can't see any port just an unknown device named something else and not Arduino Uno as the guide says. what is going wrong?

regards nestorasg

The Arduino mega1280 board uses a on-board FTDI usb serial convertor chip and that uses different driver files then the Uno or mega2560 boards. On my windows system this is the folder to point to when loading ftdi driver files:

C:\Documents and Settings\Primary Windows User\My Documents\My Programs\Arduino\arduino-0022\drivers\FTDI USB Drivers