PO Num & Date in party ledger report

Kindly help me.
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[#Line: DSP VchAccTitles]
Add : Right Field : Before : DSP VchNumberTitle : BillPONo, BillPOdate
Local : Field : BillPONo : Set as: "PO-Num"
Local : Field : BillPOdate: Type : String
Local : Field : BillPOdate: Set as: "PO-Date"

[#Line: DSP VchDetail]
Add : Right Fields : Before : DSP VchNumber : BillPONo, BillPOdate

[Field : BillPONo]
use : simple field
Width:12
Set as : $BasicPurchaseOrderNo

[Field : BillPOdate]
Use : Short Date Field
width : 10
Set as : $BasicOrderDate

 

It's done.

[#Line: DSP VchAccTitles]
Add : Right Field : Before : DSP VchNumberTitle : BillPONo, BillPOdate
Local : Field : BillPONo : Set as: "PO-Num"
Local : Field : BillPOdate: Type : String
Local : Field : BillPOdate: Set as: "PO-Date"

[#Line: DSP VchDetail]
Add : Right Fields : Before : DSP VchNumber : BillPONo, BillPOdate

[Field : BillPONo]
use : Name field
Width:18
Set as : $BasicPurchaseOrderNo
Border : Thin left right

[Field : BillPOdate]
Use : Short Date Field
width : 10
Set as : $BasicOrderDate
Border : Thin left right

[#Collection: Ledger Vouchers Coll]
Fetch : PurchaseOrderNo,OrderDate

 

Not working!!!