sorry the order by clause should be:
ORDER BY OptionName
$query_OptionValues = sprintf("SELECT ps3_options.OptionID, OptionName FROM ps3_options INNER JOIN ps3_optiongroups ON ps3_optiongroups.OptionGroupID = ps3_options.OptionGroupID WHERE ps3_options.OptionGroupID = %s ORDER BY OptionName ASC", GetSQLValueString($OGIDParam_OptionValues, "int"));