Hi Giorgio
I guess you mean this thread:
http://www.uncommonforum.com/viewtopic.php?t=3
The Rewind technique is an adaptation of the V/K dissociation, an NLP technique. It's notoriously difficult to describe, but easy to do, and extremely effective for curing phobias and PTSD.
The technique works by having the person review the problem time visually while remaining calm. You should be able to track down details by searching for the V/K.
Best
Roger