Cetin,
Yes, I did try it. I'm sure that works in many situations, but mine is different (or at least I think it's different), because each individual document starts with one section that has one column, and ends with a 2nd section that has multiple newspaper columns (for terms and conditions). So what happened when I ran the code you sent was that the section formatting wasn't kept intact.
So right before I insert each subsequent document, I have to insert a section break and tell Word that my new selection has one column, and that I want the page numbering to start back at one.
I'm not sure that the master doc approach that you sent me is fundamentally different than what I'm trying, but I'll look at your code a 2nd time and maybe I'll see something I wasn't seeing before.
Thanks,
Kevin