WTH does that have to do with anything???
Jesus didn't promise not to let the church get corrupted. Once he wasn't on earth anymore, it wasn't up to him, because he wasn't physically leading it. Men were leading it under his direction, but they still have the ability to construe the teachings (just as we do).
What's wrong with dealing with them individually? Looking at them as a whole still supports (at least to me) that they are seperate. Also, I NEVER SAID that they are three gods. They are three people, ONE GOD. Along with the one God, is one son, and one spirit. They are one in purpose (ie, the work of God, bringing souls unto Christ, etc.)
I don't believe you can put an exact time on when the church was corrupted. It has never been taught (that is to say, it is not doctrine) that it happened during the reign of Constantine. It's possible, but not definate. In the bible, you can see evidence of the church already beginning to change when Christ was crucified. Also, one thing I could point out, is that not only did it change, but it has not stopped changing. Churches spring up all over the place today that claim to be the full truth, and try to go back to exactly how the church was organized in the new testament, and follow practices of the old testament. Still today people change things and teach their own interpretations.
H-D