It's unclear exactly where your error is but from this:
> - create new ios app version with new bundle ID and new version THEN use Application Loader.app (mac) to upload new app - BUT...Application Loader.app shows OLD APP ID and OLD SKU
it sounds like you are not really changing the bundle ID on the new ios app. If you were, it would not be able to know the "OLD APP ID"
Once you delete an app with a specific name, you can't create a new app with the same name. Everyone else is allowed to create an app with that name -- just not you.