Uncommitted transaction with code wrapped in transaction

The following query to about 2.5 hours to run and the commit block was hit because the message in that block in it was shown.  It looked like it ran successfully, but I got "There are uncommitted transactions" message.  The implicit transactions appear to be off, so I don't understand why I got this message.  The code is wrapped in a transaction and the implicit transactions are turned off.  I thought about turning off implicit transactions with code at the top of the script, but wonder if it will do anything since they appear to be turned off.

Any thoughts?

Results from the query:

DECLARE @PurgeDate			AS VARCHAR(20)
    DECLARE @ArchiveInserts		AS VARCHAR(30)
	DECLARE @GLTRdeletes		AS VARCHAR(30)
	DECLARE @ArchiveInsertCount AS INT = 0
	DECLARE @GLTRdeleteCount	AS INT = 0

	
	-----------------------------------
	/**** SET BEFORE RUNNING ****/ 

		-- the value here is for testing only
	-----------------------------------
	  
	SET @PurgeDate = '10/22/2011'  


BEGIN TRAN GLTRpurge

	BEGIN TRY
		----------------------------------------------------------------------------
		-- Archive the records to be purged
		----------------------------------------------------------------------------
		
		-- original commented out to use test values
		SELECT COUNT(*) AS 'Archive Inserts' FROM GLTR WHERE PostDate <= @PurgeDate AND gltrInterfaceDate IS NOT NULL 
		INSERT INTO GLTR_ARCHIVE SELECT * FROM GLTR WHERE PostDate <= @PurgeDate AND gltrInterfaceDate IS NOT NULL ORDER BY PostDate, ID 
		SELECT @ArchiveInsertCount = @@ROWCOUNT

        PRINT cast(@ArchiveInsertCount AS VARCHAR(30)) + '  Rows inserted into GLTR_Archive'
		---------------------------------------------------------------------------
		-- Purge the original records to be archived
		----------------------------------------------------------------------------	 
		-- commented out for testing  
		SELECT COUNT(*) AS 'GLTR Deletes' FROM GLTR WHERE PostDate <= @PurgeDate AND gltrInterfaceDate IS NOT NULL 
		DELETE FROM GLTR WHERE ID IN (SELECT ID FROM GLTR WHERE PostDate <= @PurgeDate AND gltrInterfaceDate IS NOT NULL) 
		SELECT @GLTRdeleteCount = @@ROWCOUNT

		PRINT cast(@GLTRdeleteCount AS VARCHAR(30)) + '  Rows deleted from GLTR'

	IF (@ArchiveInsertCount = @GLTRdeleteCount)

		BEGIN
			COMMIT TRAN GLTRpurge

			SELECT 'The commit was made'
		END
	END TRY 

	BEGIN CATCH

		ROLLBACK TRAN GLTRpurge

		SELECT 'The transaction was rolled back - record counts did not match'

    END CATCH