I am trying the 2 usb install guide and have used the retail SL disc and made an image. I got the install to go till after the it formated the drive and then I got an error and since then I get a mach kernal error I can force the bootloader to show the snow lepord install dvd but when I choose it I am getting a memory allocation error. What is the next step I should try do I need to reinstall windows 7 and start over or can I go from where i am at. The first time I set it up i didn't us transmac but since have made a new image using transmac. what program should I use to write NBI to the usb stick.