The question was "why won't ProSeries support form 7203".

The post marked as solved was "ProSeries is planning to support Form 7203 and it is currently in development"

To me that kinda looks like Bill's question was answered.  Just because your question wasn't answered doesn't mean Bill's wasn't.  If you start your own post on the subject you can have the freedom to control whether your problem was or wasn't solved.  Hopefully that will provide the satisfaction you are looking for.