vcl用的是adodb,要修改DataBase的连接方法。打开vcl/dbtables.inc.php,找到DataBase类,然后修改DoConnect方法
$result=$this->_connection->Connect($this->Host,$this->UserName,$this->UserPassword,$this->DatabaseName);
修改成$result=$this->_connection->Connect($this->DatabaseName);
没用过SQLite,所以不一定正确,你可以试下