diff --git a/usrp/step b/usrp/20100925-msgs/step
similarity index 100%
rename from usrp/step
rename to usrp/20100925-msgs/step
diff --git a/usrp/step-A b/usrp/20100925-msgs/step-A
similarity index 100%
rename from usrp/step-A
rename to usrp/20100925-msgs/step-A
diff --git a/usrp/step-I b/usrp/20100925-msgs/step-I
similarity index 100%
rename from usrp/step-I
rename to usrp/20100925-msgs/step-I
diff --git a/usrp/step-II b/usrp/20100925-msgs/step-II
similarity index 100%
rename from usrp/step-II
rename to usrp/20100925-msgs/step-II