ibusiness and other no more available products last versions


I’m new here, and I found a problem because I had purchased a ibusiness retina responsive theme that works till now, but I cannot update any more, and due that I don’t update every version, now I cannot convert to any aother format or theme, so I would like to know if it’s possible to get the last oprative version of that in order to try to export from this version to somewhere.

Best regards,