I purchased Sins 1.00 about two years ago (it was before the Game of the Year edition, at any rate). The original packaging is long gone, and I only have the manual and disc left. I even lost the manual for a month before finding it again.
So I went and purchased Entrenchment... without registering first. That was an incredibly stupid thing to do; I realize this.
My problem: is there any way to go about registering my copy of Sins so that I can actually play Entrenchment?