How can I search on a specific customer in this A/R query. I am getting an error message

eclare @d datetime
set

/*Select 1 from jdt1 t where t.duedate*/=[%1]
/*Select 1 from ocrd t1 WHERE T1.CardCode*/=[%2]

select * from
(
SELECT T1.CardCode, T1.CardName, T0.RefDate, T0.Ref1 'Document Number',
     CASE  WHEN T0.TransType=13 THEN 'Invoice'
          WHEN T0.TransType=14 THEN 'Credit Note'
          WHEN T0.TransType=30 THEN 'Journal'
          WHEN T0.TransType=24 THEN 'Receipt'
          END AS 'Document Type',
     T0.DueDate, (T0.Debit- T0.Credit) 'Balance'
     ,ISNULL((SELECT T0.Debit-T0.Credit WHERE DateDiff(day, T0.DueDate,@d)<=-1),0) 'Future'
     ,ISNULL((SELECT T0.Debit-T0.Credit WHERE DateDiff(day, T0.DueDate,@d)>=0 and DateDiff(day, T0.DueDate,@d)<=30),0) 'Current'
     ,ISNULL((SELECT T0.Debit-T0.Credit WHERE DateDiff(day, T0.DueDate,@d)>30 and DateDiff(day, T0.DueDate,@d)<=60),0) '31-60 Days'
     ,ISNULL((SELECT T0.Debit-T0.Credit WHERE DateDiff(day, T0.DueDate,@d)>60 and DateDiff(day, T0.DueDate,@d)<=90),0) '61-90 Days'
     ,ISNULL((SELECT T0.Debit-T0.Credit WHERE DateDiff(day, T0.DueDate,@d)>90 and DateDiff(day, T0.DueDate,@d)<=120),0) '91-120 Days'
     ,ISNULL((SELECT T0.Debit-T0.Credit WHERE DateDiff(day, T0.DueDate,@d)>=121),0) '121+ Days'
FROM JDT1 T0 INNER JOIN OCRD T1 ON T0.ShortName = T1.CardCode
WHERE  T1.CardType = 'C'
) sub