Cannot Show Up Data From Access

My code show no error but the record cannot appear. My code =

if request("tarikh") = "" then
tarikh = Date()
else
tarikh = request("tarikh")
if isdate(tarikh) = false then
ralat = "Sila masukkan tarikh dalam format dd/mm/yyyy"
tarikh = Date()
end if
end if

sql = "select * from audit_trail where cstr(tarikhlogin) = '"&tarikh &"' order by masalogin desc"
set rs = conn.execute(sql)

response.write sql =
select * from audit_trail where cstr(tarikhlogin) = '04/02/2005' order by masalogin desc

Storing record have no problem but this code cant display any data.