Danilo,
I followed all your steps and it worked I did get the android market to appear, but when I open it and try to download any app the market force closes on me everytime... help plz
Try removing all of the files and installing again. Make sure you reboot again before reinstalling the files. It took 3 tries installing and uninstalling these files before I got the marketplace to work. But now it works and makes this a much more useful tablet.