UFRaw

From 0.13 to 0.15 UFRAW made a big and solid progress. I love UFRAW and it is my raw converter of the first choice. But I feel that I still don't understand how UFRAW works, and how to make the best use of it. I attribute this to the lack of detailed documentations. On the homepage of UFRAW, Uni gave a guide to UFRAW and to color management, but it is a bit technical and terse. I would like to ask folks here if you ever wrote and know any detailed documentation for UFRAW. A user-guide, or a tutorial, in plain English would also be appreciated. Thank you!