Here is a different link to the same info.
[Link: smarthus.info]You may have a problem finding codegen if you do email me and i will see if i can find my copy on my old laptop!
Failing that there is a Excel file for download on here that has all the X10 codes listed and you can just copy and paste into the editor. I can't remember what section it was under or what it was called. ( I do have a copy to email on my old laptop I'm sure).
I found that far quicker and easier to use than codegen.
Stoobie