Data Object database.links.ini problem

I've got some problems with my yourDatabaseName.links.ini file. I did work it once but since i moved this file in a relative path using a php require on my script (in the same folder with the generated table classes) the getlinks or joinadd methods just don't work and even with debug on and using print_r($GLOBALS['_DB_DATAOBJECT']['LINKS']); seems that this file is not found... Questions : 1-Do we need to have our db with innodb on and make explicit and physical links between tables (I think not but we never know ...) ? 2-Where do i put the DatabaseName.links.ini file ? I've done an php include of a my script with the DO parameters in it. I've also tried the dataobject.ini file with parse_ini_file ans an absolute path. This DO parameters script is in the same folder of the generated table classes. Logically i put the DatabaseName.links.ini file here as mentionned in the doc. BUT we never get a reference of this file in our script ??? 3-After parameting the DatabaseName.links.ini file (the syntax is easy with a 1:n relationship) ********* [tableA] tableA__fk_B = tableB:tableB__id_B ********* After including ALL the table classes and the DO parameters if i use the getlinks method, i have this : ************ $objA = new DataObject_TableA; $objA->find(); while ($objA->fetch()) { $objA->getLinks(); echo "{$objA->_fk_B->id_B}"; } ************ Well, the joinadd method should be more simple. ************ $objA = new DataObject_TableA; $objB = new DataObject_TableB; $objA->joinAdd($objB, 'LEFT'); //for left join //using $objA with tableB fields in it } ************ Did i miss something ? Thx a lot for you help, JP.Dumont