CFC Errror -Date

Error:

The argument ENDDATE passed to function get() is not of type date.If the component name is specified as a type of this argument, the reason for this error might be that a definition file for such component cannot be found or is not accessible. The specific sequence of files included or processed is: C:\Inetpub\wwwroot\Denemeler\Test\connector_test.cfm, line: 11

Any help is appreciated...

<cfcomponent>
<cffunction name="get"  returntype="query">
<cfargument name="DSN" required="true" type="string">
<cfargument name="startDate" required="true" type="date">
<cfargument name="endDate" required="true" type="date">

<cfargument name="qOper" required="true" type="query">
<cfargument name="config" type="array" required="true" hint="Can lists of lists values">

<cfquery name="getCSAT" datasource="#arguments.DSN#">
    SELECT EMPLOYEE_ID, 0 AS Invalid,
    SUM(DTV_SALES)  AS Value
    FROM OPS$SCA_METRIC_SCORE
    WHERE SCORE_DATE between '#DateFormat(arguments.startdate, "dd-mmm-yy")#'
    AND '#DateFormat(arguments.EndDate, "dd-mmm-yy")#'
    AND  EMPLOYEE_ID IN (<cfqueryparam value="#ValueList(arguments.qOper.EID)#" cfsqltype="CF_SQL_VARCHAR" list="Yes">)
    GROUP BY EMPLOYEE_ID
</cfquery>
<cfreturn getCSAT>
</cffunction>
</cfcomponent>

----

<cfscript>
CCConf    = structnew();
CCConf.MyConnector = "orct1";
CCConf.Method = "get";
CCConf.DSN   = application.Orc; //Oracle DSN
CCConf.Sql   = application.Sql; //SQL 05 DSN
CCConf.startDate = "04/01/2009";
CCConf.endDate  = "04/31/2009";
CCConf.Config = arraynew(1);
</cfscript>