eXtplorer - PHP-based File Manager

I tried to install com_eXtplorer_2.1.0RC5.zip on Joomla 1.5.22, PHP 5.2.11, mysql 5.5.16 and failed. Got the below error message in Joomla Administrator:

JInstaller::install: SQL Error. DB function failed with error number 1064
You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'TYPE=MyISAM' at line 13 SQL=CREATE TABLE IF NOT EXISTS `jos_extwebdav_locks` ( token varchar(255) NOT NULL default '', path varchar(200) NOT NULL default '', expires int(11) NOT NULL default '0', owner varchar(200) default NULL, recursive int(11) default '0', writelock int(11) default '0', exclusivelock int(11) NOT NULL default 0, PRIMARY KEY (token), UNIQUE KEY token (token), KEY path (path), KEY expires (expires) ) TYPE=MyISAM;
SQL =

CREATE TABLE IF NOT EXISTS `jos_extwebdav_locks` (
token varchar(255) NOT NULL default '',
path varchar(200) NOT NULL default '',
expires int(11) NOT NULL default '0',
owner varchar(200) default NULL,
recursive int(11) default '0',
writelock int(11) default '0',
exclusivelock int(11) NOT NULL default 0,
PRIMARY KEY (token),
UNIQUE KEY token (token),
KEY path (path),
KEY expires (expires)
) TYPE=MyISAM;