Help with Window Functions

Hi all,

I need some help in getting rid of a very slow cursor operation. 

I have three tables:

1. Consignments
2. Labels
3. ConsignmentReferences

Labels table has a foreign key to Consignments. ConsginmentReferences also has a foreign key to Consginments. 

I need to 'manufacture' a relationship between ConsgnmentReferences and the Labels table. Probably best shown with some example data:

Note: my solution must work on SQL 2008R2 which does not support SUM OVER ORDER BY

USE tempdb;


CREATE TABLE Consignments (
	ConsignmentID Int Primary Key
	)

GO

CREATE TABLE Labels (
	LabelID BigInt Identity Primary Key,
	LabelNo varchar (20),
	SequenceNo Int,
	ConsignmentID Int Foreign Key References Consignments (ConsignmentID)
	)

GO

CREATE TABLE ConsignmentReferences (
	ConsignmentReferenceID Int Identity,
	ConsignmentID Int Foreign Key References Consignments (ConsignmentID),
	NumberOfItems Int,
	SequenceNo Int)
GO 

/* INSERT THREE CONSIGNMENTS */
INSERT INTO Consignments 
VALUES (1) ;
INSERT INTO Consignments 
VALUES (2) ;
INSERT INTO Consignments 
VALUES (3) ;

/* INSERT 6 LABELS AGAINST CONSIGNMENT # 1 */

INSERT INTO Labels
VALUES ('Label1', 1, 1);
INSERT INTO Labels
VALUES ('Label2', 2, 1);
INSERT INTO Labels
VALUES ('Label3', 3,  1);
INSERT INTO Labels
VALUES ('Label4', 4, 1);
INSERT INTO Labels
VALUES ('Label5', 5, 1);
INSERT INTO Labels
VALUES ('Label6', 6, 1);


/* INSERT THREE REFERENCE LINES 
  
  Note: Reference line 2 has no items, therefore, freight labels will not be 'allocated' to this reference line

*/
INSERT INTO ConsignmentReferences
VALUES (1, 2, 1);
INSERT INTO ConsignmentReferences
VALUES (1, 0, 2);
INSERT INTO ConsignmentReferences
VALUES (1, 4, 3);


/* INSERT 6 LABELS AGAINST CONSIGNMENT # 1 */

INSERT INTO Labels
VALUES ('Label1', 1, 2);
INSERT INTO Labels	 
VALUES ('Label2', 2, 2);
INSERT INTO Labels	 
VALUES ('Label3', 3, 2);



/* 
INSERT ONE REFERENCE LINE FOR CONSIGNMENT # 2
 */
INSERT INTO ConsignmentReferences
VALUES (2, 3, 1);


/* THREE LABELS FOR CONSGINMENT # 3 */

INSERT INTO Labels
VALUES ('Label1', 1, 3);
INSERT INTO Labels
VALUES ('Label2', 2, 3);
INSERT INTO Labels
VALUES ('Label3', 3, 3);


/*  FOUR CONSGINMENT REFERENCES ON CONSIGNMENT # 3 */

INSERT INTO ConsignmentReferences
VALUES (3, 1, 1);
INSERT INTO ConsignmentReferences
VALUES (3, 0, 2);
INSERT INTO ConsignmentReferences
VALUES (3,1, 3);
INSERT INTO ConsignmentReferences
VALUES (3,1, 4);


SELECT L.*
FROM Consignments C
JOIN Labels L ON C.ConsignmentID = L.ConsignmentID;

SELECT CR.*
FROM Consignments C
JOIN ConsignmentReferences CR ON CR.ConsignmentID = C.ConsignmentID;


IF OBJECT_ID('ConsignmentReferences', 'U') IS NOT NULL 
DROP TABLE ConsignmentReferences;
GO

IF OBJECT_ID('Labels', 'U') IS NOT NULL 
DROP TABLE Labels;
GO

	
IF OBJECT_ID('Consignments', 'U') IS NOT NULL 
DROP TABLE Consignments;
GO

For each consignment reference I need to  x labels, where x is the ConsignmentReference's NumberOfItems.

For example, if Consignment Reference line 1 has NumberOfItems = 3, then the first three Labels are assigned to ConsignmentReference line 1. 

Here is the desired output:

Thanks for reading.

Cheers, Clay