Major issues wih integrated shipping, again...

I must admit, it has been a very long time since I have woken up from a dead sleep in the middle of the night because I have frustrated myself into thinking about work.  Yet, once again, here I am.

Recently, I began doing some work in the Canadian version of Netsuite.  I thought I was pretty familiar with certain areas of Netsuite, (integrated shipping being one of them) but I am finding that the Canadian version is a bit like a module I have not yet seen.  It works differently, in so many ways, and there are a bunch of things I simply cannot yet understand.  My accounting brain wants to break things down into a logical argument that makes sense to me, and at the moment, no matter how hard I try, it is just not computing.  In