i doing everything like book.
BUT drawmall.php dosen't work(the same is with mall.php).
now i'm stop :(( i don't know what to do?
Maybe something is wrong with my php.ini?
Here are both file:

Map_data.sql:

use mapping;
CREATE TABLE mall (
 m_id int(11) DEFAULT '0' NOT NULL AUTO_INCREMENT,
 m_floor char(1) NOT NULL,
 m_shop varchar(64) NOT NULL,
 m_name varchar(64) NOT NULL,
 m_phone varchar(64),
 m_area varchar(128) NOT NULL,
 m_center varchar(64) NOT NULL,
 m_desc varchar(128),
 PRIMARY KEY (m_id)
);

INSERT INTO mall VALUES (1,'G','G1','Fast Snak',
            '555-7089','150,0,150,100,200,100,200,0','175,50',
            'jedzenie,s³odycze,napoje,drinki,chipsy,cola,sa³ atki,frytki');
INSERT INTO mall VALUES (2,'G','G2','Kolporter',
            '555-6843','300,0,300,100,350,100,350,0','325,50',
            'gazety,magazyny,periodyki,materia³y piœmiennicze,kolportarz,prasa');
INSERT INTO mall VALUES (3,'G','G3','Dom mody',
            '555-7521','350,0,350,100,400,150,500,150,500,0','425,6 5',
            'ubrania,bielizna,buty,suknie,garnitury,p³aszcze' );
INSERT INTO mall VALUES (4,'G','G4','Hip-Hop',
            '555-0459','400,150,400,250,500,250,500,150','450,200',
            'cd,dvd,muzyka,kasety,wideo,rock,pop,hiphop');
INSERT INTO mall VALUES (5,'G','G5','Zielony Zak¹tek',
            '555-9561','400,250,400,350,500,350,500,250','450,300',
            'ogrodnictwo,kwiaty,florystyka,aran¿acja,roœliny ');
INSERT INTO mall VALUES (6,'G','G6','Bank Narodowy',
            '555-3675','400,350,350,400,350,500,500,500,500,350','4 25,440',
            'pieni¹dze,bank,bankowoϾ,czeki,depozyty,bankom at,gotówka');
INSERT INTO mall VALUES (7,'G','G7','Cukiereczek',
            '555-7659','300,400,300,500,350,500,350,400','325,450',
            's³odycze,cukierki,ciastka,cola,napoje,drinki,chi psy,chrupki');
INSERT INTO mall VALUES (8,'G','G8','Klasyka',
            '555-4395','150,400,150,500,200,500,200,400','175,450',
            'cd,dvd,muzyka,jazz,muzyka klasyczna');
INSERT INTO mall VALUES (9,'G','G9','Matrix',
            '555-7001','100,350,150,400,150,500,0,500,0,350','65,43 5',
            'pc,komputery,akcesoria,oprogramowanie,sprzêt,ksi ¹¿ki,cd');
INSERT INTO mall VALUES (10,'G','G10','Bibliofil',
            '555-3752','100,250,100,350,0,350,0,250','50,300',
            'ksi¹¿ki,magazyny,periodyki,czytanie,lektura');
INSERT INTO mall VALUES (11,'G','G11','Wielka Stopa',
            '555-2564','0,150,100,150,100,250,0,250','50,200',
            'buty,obuwie,sanda³y,************************y,stopy');
INSERT INTO mall VALUES (12,'G','G12','Aktywny wypoczynek',
            '555-7269','0,0,0,150,100,150,150,100,150,0','65,70',
            'turystyka,kamping,rafting');


<?php
//drawmall.php
include "./common_db.inc";

Header("Content-type: image/png");
$image = ImageCreate(501,501);
$white = ImageColorAllocate($image,255,255,255);
$black = ImageColorAllocate($image,0,0,0);

$link_id = db_connect('mapping');

$query = "SELECT m_area FROM mall";
$mallResult = mysql_query($query,$link_id);

while ($mallRow = mysql_fetch_array($mallResult)) {
   $area = explode(",", $mallRow[0]);
   for ($i=0; $i < count($area)-2; $i=$i+2) {
      ImageLine($image,$area[$i],$area[$i+1],$area[$i+2],$area[$i+3],$black);
   }
   ImageLine($image,$area[count($area)-2],
                    $area[count($area)-1], $area[0], $area[1], $black);
}

for ($i=0; $i<count($area)-2; $i=$i+2) {
   ImageLine($image,$area[$i], $area[$i+1], $area[$i+2], $area[$i+3], $black);
}
ImageLine($image, $area[count($area)-2],
                  $area[count($area)-1], $area[0], $area[1], $black);
   ImagePNG($image);
   ImageDestroy($image);
   mysql_free_result($mallResult);
?>

i just want add to my pronouncement:
this script almost work but i dont see the pictures.I see only icon(standard icon when IE can't show pictures).

I found the problem.
That was wrong function in common_db.inc files.
Name this function: db_connect().
I don't know why, but this function in CHPT 16 is with parametr: function db_connect($dbname='') {...}
Old function was:
function db_connect(){..}
Now this scripts working.