cfgrid in Cf7

Hi,

I have the search page for user to search the purNO and display resutls in the list.  I am tring to do the paging but keep got an error for cf 7 not supported the PAGESIZE,BIND.  Please advice with the code below to have it works in colfusion 7.

Thanks

<!---form--->
<cfparam name="variables.row_per_page_default" default="15">

<cfform name="tableform">
<cfgrid format="html"
name="grid_Tables"
pagesize="#variables.row_per_page_default#"
selectmode="row"
bind="cfc:cfc.query.pur{purNO},{cfgridpage},{cfgridpagesize},{cfgridsortcolumn},{cfgridsortdirection})">
<cfgridcolumn name="purNO" display="Purchase No"/>
<cfgridcolumn name="date_modified" header="Date Modified" >
</cfgrid>
</cfform>

<!---cfc--->
<cffunction name="purNo" returntype="query" access="public">
<cfargument name="purNO" required="yes" type="numeric" />
<cfargument name="page" required="yes">
<cfargument name="pageSize" required="yes">
<cfargument name="gridsortcolumn" required="yes">
<cfargument name="gridsortdirection" required="yes">

<cfquery name="qPur" datasource="#variables.dsn#">
     SELECT *
    FROM tbl_pur
    WHERE purNO = <cfqueryparam  value="#arguments.purNO#" cfsqltype="cf_sql_integer" />
    </cfquery>
   
<cfreturn queryconvertforgrid(qPur, page, pagesize) />
</cffunction>