[help with creating table MyISAM vs InnoDB]

hi i am trying to create a database table for a shopping basket :

CREATE TABLE `customers` (
`customerid` int(10) unsigned NOT NULL auto_increment,
`customerusername` varchar(35) NOT NULL default '',
`customerfname` varchar(35) NOT NULL default '',
`customerlname` varchar(35) default NULL,
`customeraddress1` varchar(60) NOT NULL default '',
`customeraddress2` varchar(60) default NULL,
`customercity` varchar(50) NOT NULL default '',
`country` varchar(50) NOT NULL default '',
`customerpostcode` varchar(30) NOT NULL default '',
`customerphone` varchar(25) default NULL,
`customeremail` varchar(40) NOT NULL default '',
PRIMARY KEY (`customerid`)
) TYPE=InnoDB;



CREATE TABLE `tblcart` (
`ct_id` int(10) unsigned NOT NULL auto_increment,
`pd_id` int(10) unsigned NOT NULL default '0',
`ct_qty` mediumint(8) unsigned NOT NULL default '1',
`ct_session_id` char(32) NOT NULL default '',
`ct_date` datetime NOT NULL default '0000-00-00 00:00:00',
PRIMARY KEY (`ct_id`),
KEY `pd_id` (`pd_id`),
KEY `ct_session_id` (`ct_session_id`)
) TYPE=MyISAM AUTO_INCREMENT=58 ;

my question are:
1. i dont understand this line: TYPE=MyISAM AUTO_INCREMENT=58 ;


2. wots the difference between MyISAM and InnoDB and which 1 is best to use.