We'll lets see...
1) You gotta give us a console report so that we can help you.
http://bc-central.net/forums/index.php/topic,57.0.html2) Whats your install order? Like this? BC; 1.1 patch; KM 2k9(or maybe installed this over 1.0...did you?); KM 2k10; other ships/mods (are they KM compatible/with each other?) List everything you can in order please.
Not everything plays nice with certain things so you gotta be careful and always, always, always test EVERYTHING extensively after you install it.(before anything else)
You've read all the readmes everything(comments on bcfiles and here and such) right?
Did you use anything other than BCUT to install the ships and whatnot? BCMI and BCMP can actually cause things to go wrong and BCUT prevents and even corrects thoose mistakes.
Remember we can't help you 'til you help us lol.