Como converter NVARCHAR separado por vírgula em registros de tabela no SQL Server 2005?

CREATE FUNCTION [dbo].[ufn_CSVToTable] ( @StringInput VARCHAR(8000), @Delimiter nvarchar(1))
RETURNS @OutputTable TABLE ( [String] VARCHAR(10) )
AS
BEGIN

    DECLARE @String    VARCHAR(10)

    WHILE LEN(@StringInput) > 0
    BEGIN
        SET @String      = LEFT(@StringInput, 
                                ISNULL(NULLIF(CHARINDEX(@Delimiter, @StringInput) - 1, -1),
                                LEN(@StringInput)))
        SET @StringInput = SUBSTRING(@StringInput,
                                     ISNULL(NULLIF(CHARINDEX(@Delimiter, @StringInput), 0),
                                     LEN(@StringInput)) + 1, LEN(@StringInput))

        INSERT INTO @OutputTable ( [String] )
        VALUES ( @String )
    END

    RETURN
END
GO

DECLARE @param NVARCHAR(MAX)
SET @param = '1:0,2:1,3:1,4:0'

SELECT 
     Split.a.value('.', 'VARCHAR(100)') AS CVS  
FROM  
(
    SELECT CAST ('<M>' + REPLACE(@param, ',', '</M><M>') + '</M>' AS XML) AS CVS 
) AS A CROSS APPLY CVS.nodes ('/M') AS Split(a)