sSQL = "INSERT INTO _clientes (EMAIL, NUM_IDENTIFICACION, CLIENTE, DIRECCION, TELEFONO, PASSWORD)" & "VALUES ('"& Request.Form("mail") & "','" & Request.Form("idntfccion") & "','" & Request.Form("nombre") & "','" & Request.Form("dir") & "','" & Request.Form("tel")
& "','" & Password&"');"
todos tus campos son variables tipo TEXTO???, tambien debes verificar eso....
