Ok finally xorg run!
The problem is that is don't install VBox-OSE-addictions.tczl, i run tiny from vbox.
The new list of operation:
-microcore + core elements on usb
-run
-tce-load -w -i -r Xorg-7.4.tczl
-tce-load -w -i -r VBox-OSE-additions.tczl (attention, the appbrowser-cli is bugged and not install package with long name)
-sudo rm /etc/sysconfig/icons for wbar (but is superfluous)
-tce-load -w -i -r openbox.tczl (or Xfce4, but this does not work on vbox!)
-startx (it works but you need to click several times on the screen before you can view the menu for bug of guestaddiction unfixable)
Ok very thanks for Kingdomcome for resolving all'of the problem, and thanks to other all for give my attention and and their precious time.
W tinycore, W gnumovement, W the bugs... ehm