Looking through the rest of the user group, I realized that this was indeed the translation software Mercator. I've been using Mercator since 1985 and still don't know all there is to it, but I'll try to help as much as possible.
As far as information, the Help - Contents information is probably your best bet. TSI International, the original creators of Mercator are no longer supporting that software, so those of us that insist on using it are basically on our own.
Once you get the hang of it, or the basics, it's not very difficult. I tried teaching myself, and it took a few months before it clicked. Once I figured out the concept, the rest was a piece of cake.