Inserting new Row in Sql

declare @liNum decimal(19,6)
      declare @PrCl dec(19,6)
      declare @de dec(19,6)
      declare @cr dec(19,6)
      declare @acc char(20)
      declare @Pracc char(20)
      Create table #W
        (
              liNum dec(19,6),sname nvarchar(100),Acc char(20), M Datetime, Op dec(19,6),De dec(19,6),Cr dec(19,6),Cl dec(19,6), Ct char(50),GrpName nvarchar(50),
              CustType varchar(30), DealrName varchar(30), MrktCode varchar(30), SPO varchar(30), Tertry varchar(30), TertryMnger varchar(30),TertryZne nvarchar(50), Active nvarchar(50),
              Addrs nvarchar(200),city varchar(30), CrLimit numeric(9), PayTerms varchar(30), Zne varchar(12),CustCatgry varchar(11)
        )
      Insert into #W 
      (
            liNum, sname, Acc,M,Op,De,Cr,Cl  ,Ct,GrpName,CustType,DealrName,MrktCode,SPO,Tertry,TertryMnger,TertryZne,Active,Addrs,city,CrLimit,PayTerms,Zne,CustCatgry
      )
      SELECT  t1.TransId, t1.ShortName , T1.[Account], 
            Convert(Datetime,t0.RefDate,103) , 0,
            T1.[Debit] De ,T1.[Credit] Cr,0 ,d2.CardCode,d2.GroupName, d2.CustomerType, d2.DealerName, d2.MarketingCode, d2.SPO, d2.Territory, d2.TerritoryManager, d2.TerritoryZone, d2.Active,
            d2.Address, d2.City, d2.CreditLimit, d2.PaymentTerms,d2.Zone, d2.CustomerCatergory
            FROM OJDT T0 
                  INNER JOIN JDT1 T1 ON T0.TransId = T1.TransId
                  INNER JOIN DIMBUSINESSPARTNERS D2 ON D2.CARDCODE = T1.SHORTNAME  
                  where d2.CardType='C'
            and  t1.ShortName in ('101267','107286','107755','2109294','4101340')


            Order By T1.[ShortName] ,T1.[RefDate],t1.TransId asc
      Declare cu cursor for
      Select #w.sname,de,cr from #W  
        for update set @PrAcc=''
      Open cu
      Fetch next from cu into @acc,@de,@cr
      While @@FETCH_STATUS = 0 
      Begin
      If @acc!=@PrAcc set @PrCl=0
      Update #W
         set op=@PrCl,
               cl=@PrCl-@Cr+@de
        where current of cu
      set @PrCl=@PrCl-@Cr+@de
      set @PrAcc=@acc
      Fetch next from cu into @acc,@de,@cr
      End
      deallocate cu
      
      --select #w.M from #w
      --insert into #W (M)values('2013-01-01')---------- I WANT TO INSERT A NEW ROW HERE...-----------


      select *, #w.Cl as Balance, YEAR(#w.M) AS Year , convert(char(3), '2013-02-28', 0) as MName , MONTH('2013-02-28') AS Month , '2013-01-01' AS FromDate, '2013-02-28' AS Todate
      from #w 
      inner   join (
      select Max(liNum) as transid from #W      
      where #w.sname not in (select sname from #w where  #w.M between '2013-01-01' and '2013-02-28')  
      and #w.m <'2013-01-01'
      group by #w.sname  )
      #z on #z.transid = #w.liNum 
      where #w.M <'2013-02-28'
      
      --union     
      --select    *, #w.Cl as Balance, YEAR(#w.M) AS Year , convert(char(3), #w.m, 0) as MName , MONTH(#w.m) AS Month , @FromDate AS FromDate, @Todate AS Todate
      --from #W 
      --inner join 
      --(
      --    Select MAX(liNum) as rownum  
      --    from #w 
      --    where #w.M between @Fromdate and @Todate
      --    group by year(#w.m), month(#w.M),  #W.sname
      --) #z on #z.rownum = #w.liNum
      --where      #w.M between @Fromdate and @Todate
      
      Drop table #W