You should use diplomod. It is really good. I just got it a few days ago and was trying it out. It doesn't really make diplomacy with the AI easier, it just gives you more options like trading technology, having a trade agreement, stuff like that. If you still don't want to get it, don't worry just get this little file that forces the comp to honor the withdraw pact, it does nothing else to the game. Get it at
http://www.mydocsonline.com/pub/hexa...withdraw13.zip