Finally i got the screenshots!
For those with the same problem saving images on draw tool you can make a screenshot inside the tool by ;
Pressing home for 2 seconds and with [home] still pressed, click/tap on a free space [or the existing save button]of the tool´s toolbar on the screen for about 1 second, then with home still pressed after 1 sec of the tap, click/tap again on a free space of toolbar mateinning both pressed, THEN RELEASE THE HOME BUTTON but with the free space still clicked/tapped.
This should do the work without getting out of Draw Tool every time you press home - what , avoid you from taking the needed shot.
As usual the screenshots go to /mnt/us and you can check out with that worked , by launching xterm and typing "cd /mnt/us" , ands after "ls" what will list the files on /mnt/us and youll can check with you got a succesful screenshot before plug-in-plug-out the kindle to PC .
"clear" to clear screen
"exit" to get ou xterm
At this moment Icant see the screenshots directly from inside kindle because imgviewr just dont launch for me .