How can I use XLIFF to help with form translation?

I know nothing about how to do use XLIFF to aid in getting form translated into other languages. I am researching this as part of a project to see if this will work. But all I have found in articles about how to use XLIFF with LiveCycle Designer seem to assume that people reading the article know how to do it. What I want to know is,

1. What tools do I need besides LiveCycle Designer ES.

2. How do I get the .xdp files into a format that I can bring into an editor, do the translation then get it back into an .xdp so I can open it in LiveCycle Designer again.

3. Who can I talk to about this?

So far I'm not getting any help on any inquires I have posted on other forums. I just want to learn how this works and how to do it.

Steven