I have done a little work on a new Wizard Adapter in the AspNetControlAdapters project: http://code.google.com/p/aspnetcontroladapters
It is very much incomplete, but if someone can provide some real-world examples of current usage, it would be easier for me to finish coding it. (I don't do much WebForms development now, so real-world samples are lacking.)
If you want to contribute to the effort, post on the Google group at http://groups.google.com/group/aspnetcontroladapters -- provide as much as you can in terms of an example of your CURRENT Wizard code (aspx and codebehind), the CURRENT generated output, and the DESIRED output.