Yes. FH 2.4 only works with patch 1.5 installed. A friend of mine, he uses Vista 32 bit, tried it and the mod doesn't start (error message shows, that a DLL file is missng). You can switch to FH2 in the community section in BF2v, but ther are some more problems. If you want to use the server browser, it doesn't show any server and if you try to start a map in SP or Coop, the game freezes before finishing to load the map.