The Air Tactical Assault Group presents the Team Fusion Mods for IL2 Sturmovik: Cliffs of Dover.

This Mods fixes a Huge amount of bugs and issues left by the 1C team when they abandoned the game.

It makes it playable and introduces a lot of new stuff.

For more information check their forum: 
http://theairtacticalassaultgroup.com/forum/forumdisplay.php?f=100

This torrent includes fusion 3, 3.1, 4 and 4.3

Version 1 and 2 do not exist.

I never tried with pirate game, but I think you need the original steam IL2 to use this mod.