Whoward, I've been playing with your standard DLL and these Diplomacy mods for quite a while now with no problems. Recently I decided that I wanted to try your 34 Civs DLL, which you have written on your site includes the same functionality as the standard.
I noticed that whenever I try and run with the 34 Civs DLL that I cannot enable the CSD and Civ IV Diplomacy features plugins that you have created; it says that the correct dependencies are not enabled.
I noticed that in the description of the plugins they are specifically asking for the file name of the standard DLL and not the 34 Civs DLL, which is different. So it 'seems' that they may not be able to run together.
What I then did was go into modbuddy and copy/paste your XML files into a new mod without the dependencies that your original copies were asking for. When I fired it back up everything worked - sort of. Turn one, ancient era, still in the process of researching Pottery, and when I meet a new Civ I am able to trade them any Technology from the Tech Tree instantly. However, if you try to do so nothing at all will happen. You can close the diplomacy window and a new technology is not awarded.
Anyway, I just wanted to make you aware of this in case you would inclined to fix it. I realize that these are your mods, and you are under no obligation to any one else who downloads them (thank you none the less for providing them), so if this is something you have no intention of getting to then I perfectly understand.
Upon further review I also seem to be running into this problem with virtually all of your "Global" plugins; such as 3 Units Per Tile, Allies Block Blockades, etc. Curiously, the one that did work without an issue was 2 Units Per Tile, which does NOT have a particular dependency attached to it... at least in the in game Mods menu. So, I'm thinking maybe that maybe the dependencies just need a simple update.
Well, this was extremely long-winded. Sorry about that. If you get time to check it out, cool, if not, I'll keep trying to "patch" it on my end.
Thank you!