Mudar o cursor ultrapassa-me... em princípio a compatibilidade disso com os browsers deixa muito a desejar...
Mas fixar uma imagem no fundo (como no meu profile), é simples:
body {
background-image:url("http://img484.imageshack.us/img484/134/skycopy2go.jpg");
background-repeat:repeat;
background-attachment:fixed;
}
.bg_profile, .bg_gradient_profile, .bg_content {
background-image:url("http://img484.imageshack.us/img484/134/skycopy2go.jpg");
background-repeat:repeat;
background-attachment:fixed;
}
O pior é que depois podes querer tornar 90% das coisas transparentes, k é kk coisa parecida com isto:
.profile-module-body-left, .profile-module-body, .bg_pageheader, .bg_title, .bg_network, .bg_groups, .bg_classmates, .bg_community, .box_community_network_heading, .box_community_friends_heading, .box_community_classmates_heading, .box_community_groups_heading, .bg_photos, .bg_systembox, .box_quicksearch_heading, .box_fivestats_heading, .bg_content, .box_home_col_left, .box_home_col_content, .box_community_content, .box_community_network_content, .box_fivestats_content, .box_community_friends_content, .box_community_classmates_content, .box_community_groups_content, .box_content_profile_journal, .box_content_profile_groups, .box_editprofile_content, .bg_border, .box_home_col_shortcuts, .box_quicksearchfield_title, .box_quicksearchfield_field, .box_profile_picture_links, .box_profile_links, table.box_profile_picture, .bg_notch_systembox {
background-color:transparent;
background-image:none;
}