There are a couple of different versions of it out there - if you could maybe post the one that you are currently using (it will be 2 files, a .js and a .htm file in your commands folder) I could modify it to only show US sizes for you, it just involves removing a section of UI.
Thank you Michael, I will post tomorrow after I get home from the shop. I am just returning to work after spine surgery Jan 2011 so I got a lot of catching up to do. Thanks for all your help.
Best regards
Tom