Thanks, John.
Those did help out some, but I am still having problems getting this to work. It seems that there is plenty of documentation on DNN 3.x, but not 4.x. I think there are some differences, since when I upload the ZIP file, the files get up there, but in the wrong place. They end up on level too deep.
That is only the beginning of my troubles, but the rest are mostly messing around with the HTML and skn.xml files to figure them out. I would appreciate better error messages than 'Duplicate ID attributes'. It would be helpful if it told me where it saw the duplicate, so I know where to look.
Any tips anyone can give me would be appreciated. What about a book that will help me with skinning? Any suggestions on those?
I will keep looking through the resources you sent, as I see that there is a bunch of info on both sites.
Thanks!
Brad