I updated my Tablet over the weekend, My thoughts:
There is a PDF for instructions on how to put the tablet into recovery mode (Vol up, Vol down AND power).
The PDF descibes installing the USB driver (For recovery mode), included with the ICS image.
There are very few apps in the image. No File explorer.
1. Configurre your wifi, use Settings.
2. Open the broswer (Internet Browser).
3. Find a File explorer app, and download it (or install it).
4. If you downloaded the file explorer app, then open "Download" app and install it.
Now you can at least see the files in the internal memory and SD card.
I had downloaded most apps to the SD card, and was very surprised I had so much trouble accessing it.
Also I could NOT get "Google Play Store" to work on the image.
The apps I could get running:
ES File explorer, difficult to access the SD card "/mnt/sdcard2"
Google Play Music
BlueSky live wallpaper
That is about all I have tried at this point.