[Paccy]

Das war die Lösung; es fehlte die .css Datei g33k_thankyoulike.css mit dem Inhalt

PHP-Code:

div[id^=tyl_btn_] {
display: inline-block;
}

a.add_tyl_button span{
background-image: url(images/thankyoulike/tyl_add.png);
background-repeat: no-repeat;
font-weight: bold;
}

a.del_tyl_button span{
background-image: url(images/thankyoulike/tyl_del.png);
background-repeat: no-repeat;
font-weight: normal;
}

.tyllist{
background-color: #f5f5f5;
border-top: 1px dotted #ccc;
border-bottom: 1px dotted #ccc;
padding: 2px 5px;
}

.tyllist_classic{
background-color: #f5f5f5;
border-top: 1px dotted #ccc;
border-bottom: 1px dotted #ccc;
padding: 2px 5px;
}

img[id^=tyl_i_expcol_]{
vertical-align: bottom;
}


Danke für die Hilfe!