I have a question. I downloaded a template from Internet. "James" created it (author: James). I edited this template and do fundamental change. Now I want add my name to the info box. What should I write there? (for example I should write "Original design by James, Edited by ME")
Is this template in any sort of public domain or licensed/distributed on some other terms that allow for modification and distribution? If so, then the wording you suggest would be ok, although I would say "Originally designed by James, Edited by YOU" or "Based on original design by James, edited and updated by YOU".