SDK is meant to make it easier to script and make scripts more compatible, but the only thing it has brought is even more incompatiility.
It is vital that you paste the SDK code just under all the standard scripts if you haven't. Other than that, I suggest you find the makers of the scripts and tell them about the problems. Most probably you will be able to find them at
www.hbgames.org/forums , since as I am not familiar with these scripts (and you haven't even posted them >.<), I can't help you.
P.S. Don't tell them you use the PK Edition, most likely they won't want to help you anymore then.