Can't install subform on a MySQL 4.0.23 server.

When i activate for the first time the subfom.module in the admin/modules, I get theses messages (on a french PHP) :

=========================
Installing subform
Generating relation content type
Generating relation instances table
Subform module installed tables successfully.
The configuration options have been saved.
=========================
user warning: Erreur de syntaxe pr賠de 'DEFAULT CHARSET=utf8' ࠬa ligne 13 query: -- -- Table structure for table `node_content_relation_type` -- CREATE TABLE IF NOT EXISTS node_content_relation_type ( vid int(10) unsigned NOT NULL default '0', nid int(10) unsigned NOT NULL default '0', field_type_one_cn varchar(128) NOT NULL default '', field_type_two_cn varchar(128) NOT NULL default '', field_type_one_cardinality_value int(11) NOT NULL default '0', field_type_two_cardinality_value int(11) NOT NULL default '0', PRIMARY KEY (vid) ) ENGINE=MyISAM DEFAULT CHARSET=utf8; in /tests/includes/database.mysql.inc on line 121.
user warning: Erreur de syntaxe pr賠de 'DEFAULT CHARSET=latin1' ࠬa ligne 15 query: -- -- Table structure for table `node_relation_instances` -- -- Creation: Nov 30, 2006 at 08:40 AM -- Last update: Nov 30, 2006 at 12:08 PM -- CREATE TABLE IF NOT EXISTS `node_relation_instances` ( `node_one` int(10) NOT NULL default '0', `node_two` int(10) NOT NULL default '0', `type` int(10) unsigned NOT NULL default '0', `id` int(10) unsigned NOT NULL auto_increment, PRIMARY KEY (`id`), KEY `node_one` (`node_one`,`node_two`,`type`) ) ENGINE=MyISAM DEFAULT CHARSET=latin1; in /tests/includes/database.mysql.inc on line 121.
user warning: Erreur de syntaxe pr賠de 'DEFAULT CHARSET=latin1' ࠬa ligne 5 query: CREATE TABLE IF NOT EXISTS `subform_dummy` ( `nid` int(10) unsigned NOT NULL default '0', `dummy` varchar(5) NOT NULL default 'dummy', PRIMARY KEY (`nid`) ) ENGINE=MyISAM DEFAULT CHARSET=latin1; in /tests/includes/database.mysql.inc on line 121.
======================================================

I think the "ENGINE=MyISAM DEFAULT CHARSET=latin1" clause for creation of table in the subform.install is not support in the MySql system of my FAI...

Versions list:
PHP 5.0.4
MySql 4.0.23

Drupal 4.7.4
content.module,v 1.56.2.39 2007/01/09 14:53:45
views.module,v 1.159.2.32 2007/01/22 02:13:01

and :
subform.module, v0.30 for drupal 4.7

I try to change the subform.install and cancel the clause in ""ENGINE=MyISAM..." in the CREATE TABLE lines but whith no sucess...

Can you help me ?