Hi Girma,
You are referring to the fact that the Antix Linux virtualbox image (the image we created that contains pre-installed PRECIS pp utilities, cf-python, CDO, NCL, NCO, Panoply, Grads and more), downloadable here
http://www.precisrcm.com/Antix131.ovahas the default key map set to the UK keyboard.
The solution is to boot up the Antix image, then right click on the desktop and choose Control Centre.
antiX-control centre ->Xwindow -> Change keyboard layout
Basically, you need to figure out how to tell Antix Linux that you want to use a US keyboard layout.
I don't have the image booted up right now in front of me, but I am confident that it should be an easy fix.
It may involve some google searches on your part. For example, a google search for "change Antix keyboard layout"
leads me to this page
http://forum.mepiscommunity.org/viewtopic.php?f=40&t=31928 which might be useful for you.
Thank you
David