USB Driver problem ET1N0

Hi everybody, I'm trying to transfer files between my pc and the ET1N0 but I don't have access to the SDcard of the tablet. I have installed the  Android USB Driver v1.1 and  then Android USB Driver v1.2, so I can see it like an "Android Device" in the "Device Manager" of Win7 and I can run aplications from the sdk, but I don't have access to the tablet's memory. So I have to take out the SD card and put on my pc to transfer any file.

Is anything that I can do to fix it? 


Thanks for your help.


Daniel Narváez