Need help returning record set from a dynamic sql query

Hi,

Iam new to Postgresql, now i need to create a Dynamic SQL Query for
returning the record set
based on my Input Parameters. I looked up some of the documents and worked
out some more ...

MY Postgresql Version In Local: 7.4
MY Postgresql Version In Development: 8.2

-- DROP TYPE ORDERREPORT;
CREATE TYPE ORDERREPORT AS (ORDERSID INTEGER,ORDERDATE TIMESTAMP,COMPANYNAME
TEXT,EVENTNAME CHARACTER VARYING);

-- DROP FUNCTION FUN_ORDERREPORT(IN pmOrderId INTEGER,IN pmCompanyId
INTEGER,IN pmEventId INTEGER);
CREATE OR REPLACE FUNCTION FUN_ORDERREPORT(IN pmOrderId INTEGER,IN
pmCompanyId INTEGER,IN pmEventId INTEGER) RETURNS SETOF ORDERREPORT AS
'
DECLARE
vResult ORDERREPORT%ROWTYPE;
vSql TEXT = ''
SELECT
ORDR.ORDERSID AS OrderID,
ORDR.INITIATED AS Order_Date,
COMP.COMPANYNAME AS Company_Name,
EVNT.EVENTNAME AS Event_Name
FROM
ORDERS ORDR
INNER JOIN COMPANY COMP ON COMP.COMPANYID = ORDR.COMPANY
INNER JOIN EVENT EVNT ON EVNT.COMPANY = COMP.COMPANYID
WHERE
ORDR.EVENT = EVNT.EVENTID '';
BEGIN
IF $1 IS NOT NULL THEN
vSql = vSql ||'' AND ORDR.ORDERSID = ''|| $1;
END IF;

IF $2 IS NOT NULL THEN
vSql = vSql ||'' AND COMP.COMPANYID = ''|| $2;
END IF;

IF $3 IS NOT NULL THEN
vSql = vSql ||'' AND EVNT.EVENTID = ''|| $3;
END IF;
EXECUTE vSql INTO vResult;
RETURN NEXT vResult;
END '
LANGUAGE 'PLPGSQL';

Result:

events=# SELECT * FROM FUN_ORDERREPORT(102881,NULL,NULL);
ordersid | orderdate | companyname | eventname
----------+----------------------------+-------------+-----------------
102881 | 2006-02-10 14:49:53.002653 | PhotoMania | Photos
(1 row)

events=# SELECT * FROM FUN_ORDERREPORT(NULL,NULL,NULL);
ordersid | orderdate | companyname | eventname
----------+----------------------------+-------------+-----------------
102881 | 2006-02-10 14:49:53.002653 | PhotoMania | Photos
(1 row)

Iam getting just the first record from the recordset.
Can someone help me how can i return all query results from a Dynamic SQL
Query?

--
Thanks,
MuraliDharan V