I am not sure what importer you are referring to. There are no importers that are part of the Pro package.
There use to be a beta importer in the import forum for vb3 series that imported vb
albums into Pro but it was never part of the Pro code. There are no importers for vb4 at this date. The last year was spent supporting vb4 no work has been done on any supplimental scripting.