in the map javascript file, the code to add the icons will look like:
var icon_0 = new GIcon();
icon_0.image = 'google_javascript/images/traditionalflat_pacifica.png';
icon_0.shadow = 'google_javascript/images/traditionalflat_shadow.png';
icon_0.iconSize = new GSize(34,35);
icon_0.shadowSize = new GSize(34,35);
icon_0.iconAnchor = new GPoint(9,33);
icon_0.infoWindowAnchor = new GPoint(19,0);
icon_0.printImage = 'google_javascript/images/traditionalflat_pacifica.gif';
icon_0.mozPrintImage = 'google_javascript/images/traditionalflat_pacifica_mozprint.png';
icon_0.printShadow = 'google_javascript/images/traditionalflat_shadow.gif';
icon_0.transparent = 'google_javascript/images/traditionalflat_pacifica_transparent.png';
you can change these paths to use your own images if you like.
