+=item new
+
+Aquires basic lock on payunique
+
+=item pending
+
+Transaction is pending with the gateway
+
+=item authorized
+
+Only used for two-stage transactions that require a separate capture step
+
+=item captured
+
+Transaction completed with payment gateway (sucessfully), not yet recorded in
+the database
+
+=item declined
+
+Transaction completed with payment gateway (declined), not yet recorded in
+the database
+
+=item done
+
+Transaction recorded in database
+
+=back