there are four directories 

action (sieve actions)
test (the test cases for if)
action extension (extensons to sieve that are actions)
testExtension (extensions to sieve that are tests)

inside these directories is:

XXXXX.s (sieve script)
XXXXX.key (what this script should do with thest messages
serverm (dir of messages- for testing the script using lmtp server)
testm (dir of messages- for testing the script using sieve test program)

the redirected messages are all being sent to me@blah.com.  when using a lmpt server, change this to a real address first