want to switch from phpbb to vb

[johnny_depp]

Hi
without wasting anyone time i would like to come to the point that we are already running a warez forum on phpbb with having 4500+ active users but we are facing some difficulty in terms of operations and setting of phpbb because its a bit complicated and we are not professional coders or developers to edit mod installation..thats why decided to move to vb but before purchasing it i would like to ask that for a warez forum which one should we purchase..vb classic or vb suite and 2nd thing that if we purchase vb 4.0 then do we have to purchase the licence every year or not.... and one last thing that how can we transfer our existing database of our old forum to the new vb one
guidance will be highly appreciated