Bought a New Arduino Yun with Linino and I want to Convert it Back to OpenWRT

Hi Team, I just bought a new Arduino Yun and I received a message to go to Arduino.ORG for downloading the software. That's where my nightmares started, this new version of the software is not working on my computer, Windows 7, and I'd like to return to the gool old OpenWRT software. I am having problems with drivers and Linino. Please help!
By the way what happen with you guys to have two sites for support, to me it seems you are shooting your own foot but I have nothing to do with that, I only want to have my Arduino working...

The two sites are from separate organizations - there's an ongoing trademark dispute between them, each claiming to be the real Arduino. (this is why the Genuino brand is being used for official Arduino boards in some regions) Arduino.cc is the one with the founders, arduino.org is the old manufacturing partner which went rogue last year. So that's why there are two sites...

I've got nothing to say that might help with your Yun though.