Sorry – I had to nuke the entire install due to a conflict with iThemes Security and another download manager. I haven’t reinstalled WPDM, and may not end up using it at all.
So where is v4? I guess you really mean it only works with the ‘pro’ version? If so, you really ought to add that info to this page: http://www.wpdownloadmanager.com/download/advanced-access-control/ or make it clear that your add-ons only work with pro. I feel a little ripped off.