I bought v4 a while ago (4.7.0) but when I saw it wasn't a simple upgrade I never installed it because it was beyond my tech ability. However, v3 is no longer functional and I can't take new orders. On this page: http://www.amember.com/docs/Migration_from_legacy_aMember_Pro_v3 it says $80 for the v4 software and $80 for the upgrade support ($160). How do I get support to upgrade to the 4.7.0 version I already have?