Oui je vois en fait il te manque pas mal de chose...

d'abord tu dois avoir tt ces paquets d'installer:

apt-get install apache2 php4 libapache2-mod-php4 php4-cli php4-gd mysql-server-4.1 php4-mysql php4-pear php4-snmp php4-cgi rrdtool nmap libgd-dev libpng12-0 libpng12-dev libconfig-inifiles-perl libcrypt-des-perl libdigest-hmac-perl libdigest-sha1-perl libgd-gd2-perl libgd-graph-perl libgd-graph3d-perl libio-socket-inet6-perl libnet-snmp-perl librrds-perl libsocket6-perl libgd-tools gcc g++ make libperl-dev libglib2.0-dev libmysqlclient15-dev libgd2-xpm-dev


il te faut installer les librairies PEAR, lance cette commande:

pear upgrade DB
pear upgrade pear-1.3.5
pear upgrade Structures_Graph
pear upgrade Archive_Tar
pear upgrade pear
pear channel-update pear.php.net
pear upgrade-all
pear install -o -f --alldeps DB_DataObject-1.8.4 DB_DataObject_FormBuilder-1.0.0RC4 MDB2-2.0.0 Date-1.4.6 Numbers_Roman-1.0.1 Numbers_Words-0.14.0 HTML_Common-1.2.2 HTML_QuickForm-3.2.5 HTML_QuickForm_advmultiselect-1.1.0 HTML_Table-1.6.1 Auth_SASL-1.0.1 Image_Canvas-0.2.4 Image_Color-1.0.2 Image_Graph-0.7.1 Image_GraphViz-1.1.0 Mail_Mime-1.3.1 Net_Traceroute-0.21 Net_Ping-2.4.1 Validate-0.6.2 XML_RPC-1.4.5

la ligne qui commence par pear install -o ... VA JUSKA LA FIN

voila ;)