Index: lams_common/conf/hibernate/mappings/org/lamsfoundation/lams/learningdesign/Activity.hbm.xml
===================================================================
diff -u -r87ec6bd0708e9da634182eacca8c74e442bc748f -r4bf4556646feb7431bf82f3eebc4c3353d5ae4f2
--- lams_common/conf/hibernate/mappings/org/lamsfoundation/lams/learningdesign/Activity.hbm.xml	(.../Activity.hbm.xml)	(revision 87ec6bd0708e9da634182eacca8c74e442bc748f)
+++ lams_common/conf/hibernate/mappings/org/lamsfoundation/lams/learningdesign/Activity.hbm.xml	(.../Activity.hbm.xml)	(revision 4bf4556646feb7431bf82f3eebc4c3353d5ae4f2)
@@ -130,7 +130,7 @@
         <column name="grouping_id" />
     </many-to-one>
     
-	<set  name="inputActivities" lazy="true" cascade="none" table="lams_input_activity">
+	<set  name="inputActivities" lazy="true" cascade="none" table="lams_input_activity" order-by="activity_id">
    		<key><column name="activity_id" /></key>
    		<many-to-many column="input_activity_id" class="org.lamsfoundation.lams.learningdesign.Activity"/>
 	</set>
Index: lams_common/src/java/org/lamsfoundation/lams/learningdesign/Activity.java
===================================================================
diff -u -r245c3e8e3ffd8e00786cd143f3467990b838ed9e -r4bf4556646feb7431bf82f3eebc4c3353d5ae4f2
--- lams_common/src/java/org/lamsfoundation/lams/learningdesign/Activity.java	(.../Activity.java)	(revision 245c3e8e3ffd8e00786cd143f3467990b838ed9e)
+++ lams_common/src/java/org/lamsfoundation/lams/learningdesign/Activity.java	(.../Activity.java)	(revision 4bf4556646feb7431bf82f3eebc4c3353d5ae4f2)
@@ -1051,5 +1051,31 @@
 		return null; 
 	}
 
-   
+	/** Get the input activity UIIDs in a format suitable for Flash. See also getToolInputActivityID */
+	public ArrayList<Integer> getInputActivityUIIDs() {
+		ArrayList<Integer> list = new ArrayList<Integer>();
+		if ( getInputActivities() != null && getInputActivities().size() > 0 ) {
+			Iterator iter = getInputActivities().iterator();
+			while ( iter.hasNext() ) {
+				Activity inputAct = (Activity) iter.next();
+				list.add(inputAct.getActivityUIID());
+			}
+		}
+		return list;
+	}
+
+	/** 
+	 * Get the first input activity's UIID as the tool input activity. The db is set up to allow multiple input
+	 * activities, but at present we only support one. See also getInputActivityUIIDs.
+	 */
+	public Integer getToolInputActivityUIID() {
+		if ( getInputActivities() != null ) {
+			Iterator iter = getInputActivities().iterator();
+			if ( iter.hasNext() ) {
+				return ((Activity)iter.next()).getActivityUIID();
+			}
+		}
+		return null;
+	}
+
 }
\ No newline at end of file
Index: lams_common/src/java/org/lamsfoundation/lams/learningdesign/dto/AuthoringActivityDTO.java
===================================================================
diff -u -r039707d1e936b6be92842a45e442d37db9886513 -r4bf4556646feb7431bf82f3eebc4c3353d5ae4f2
--- lams_common/src/java/org/lamsfoundation/lams/learningdesign/dto/AuthoringActivityDTO.java	(.../AuthoringActivityDTO.java)	(revision 039707d1e936b6be92842a45e442d37db9886513)
+++ lams_common/src/java/org/lamsfoundation/lams/learningdesign/dto/AuthoringActivityDTO.java	(.../AuthoringActivityDTO.java)	(revision 4bf4556646feb7431bf82f3eebc4c3353d5ae4f2)
@@ -313,6 +313,8 @@
 
 	}
 	public AuthoringActivityDTO(Activity activity, ArrayList<BranchActivityEntryDTO> branchMappings){
+		processActivityType(activity, branchMappings);
+
 		this.activityID = activity.getActivityId();
 		this.activityUIID = activity.getActivityUIID();
 		this.description = activity.getDescription();
@@ -353,36 +355,24 @@
 		this.initialised = activity.isInitialised();
 		this.stopAfterActivity = activity.isStopAfterActivity();
 		
-		if ( activity.getInputActivities() != null && activity.getInputActivities().size() > 0 ) {
-			ArrayList<Integer> list = new ArrayList<Integer>();
-			Iterator iter = activity.getInputActivities().iterator();
-			while ( iter.hasNext() ) {
-				Activity inputAct = (Activity) iter.next();
-				list.add(inputAct.getActivityUIID());
-				if ( this.toolActivityUIID == null )
-					this.toolActivityUIID=inputAct.getActivityUIID();
-			}
-			this.inputActivities = list;
-		}
-		
-		// must be done last as it depends on toolActivityUIID
-		processActivityType(activity, branchMappings, toolActivityUIID);
+		this.inputActivities = activity.getInputActivityUIIDs();
+		this.toolActivityUIID = activity.getToolInputActivityUIID();
 
 	}
 	
 	
 
-	private  void processActivityType(Activity activity, ArrayList<BranchActivityEntryDTO> branchMappings, Integer toolActivityUIID){
+	private  void processActivityType(Activity activity, ArrayList<BranchActivityEntryDTO> branchMappings){
 		if(activity.isGroupingActivity())
 			 addGroupingActivityAttributes((GroupingActivity)activity);
 		else if(activity.isToolActivity())
 			 addToolActivityAttributes((ToolActivity)activity);
 		else if(activity.isGateActivity())
 			 addGateActivityAttributes(activity);
 		else 			
-			 addComplexActivityAttributes(activity, branchMappings, toolActivityUIID);		
+			 addComplexActivityAttributes(activity, branchMappings);		
 	}
-	private void addComplexActivityAttributes(Activity activity, ArrayList<BranchActivityEntryDTO> branchMappings, Integer toolActivityUIID){		
+	private void addComplexActivityAttributes(Activity activity, ArrayList<BranchActivityEntryDTO> branchMappings){		
 		ComplexActivity complex = (ComplexActivity) activity;
 		if ( complex.getDefaultActivity() != null ) {
 			defaultActivityUIID = complex.getDefaultActivity().getActivityUIID();
@@ -395,7 +385,7 @@
 		else if(activity.isBranchingActivity())
 			addBranchingActivityAttributes((BranchingActivity)activity);
 		else
-			addSequenceActivityAttributes((SequenceActivity)activity, branchMappings, toolActivityUIID);
+			addSequenceActivityAttributes((SequenceActivity)activity, branchMappings);
 		
 	}
 	private void addGroupingActivityAttributes(GroupingActivity groupingActivity){
@@ -420,13 +410,18 @@
 		this.endXCoord = activity.getEndXcoord();
 		this.endYCoord = activity.getEndYcoord();
 	}
-	private void addSequenceActivityAttributes(SequenceActivity activity, ArrayList<BranchActivityEntryDTO> branchMappings, Integer toolActivityUIID){
+	private void addSequenceActivityAttributes(SequenceActivity activity, ArrayList<BranchActivityEntryDTO> branchMappings){
+		
+		Activity parentActivity = activity.getParentActivity();
+		Integer toolActivityUIID = parentActivity != null ? parentActivity.getToolInputActivityUIID() : null;
+
 		Iterator iter = activity.getBranchEntries().iterator();
 		while ( iter.hasNext() ) {
 			BranchActivityEntry ba = (BranchActivityEntry) iter.next();
 			branchMappings.add(ba.getBranchActivityEntryDTO(toolActivityUIID));
 		}
 	}
+	
 	private void addToolActivityAttributes(ToolActivity toolActivity){
 		this.toolContentID = toolActivity.getToolContentId();
 		this.toolID = toolActivity.getTool().getToolId();