at some places you'll have to look for a check if a valid avatar URL is given... if not, then add your default
eg. in avatar_manage.php
if ($avatar_url !="") $avatar_url = "<img src='".$avatar_url."' class=\"image\">";
else $avatar_url="";
make the else reflect your default avatar image like
else $avatar_url="<img src='".$CONFIG['ecards_more_pic_target']."images/default_avatar.jpg' class=\"image\">";
other places to look at...
buddy_manage.php
if ($i['avatar_url']) {
$avatar_url=AVATAR_PATH.$i['avatar_url'];
$preview = <<<EOT
<img src="$avatar_url" alt="" class="image" /></a>
EOT;
} else {
$preview = " ";
}
themes.inc.php
if($cpg_udb->can_join()){
if ($CONFIG['enable_avatar']){
($row['avatar_url'] != "") ? $avatar_url= "<img src='".AVATAR_PATH.$row["avatar_url"]."' class='image' style='float: left; margin-right: 5px;' alt='' />" : $avatar_url = '';
}
else $avatar_url="";
} else { // only used when tables can't be joined... then we need to query for the avatar URL -> function get_avatar
if ($CONFIG['enable_avatar']){
$result2 = $cpg_udb->get_avatar($row['author_id']);
$avatar_url= preg_replace('/\/\//','/',AVATAR_PATH.$result2["avatar_url"]);
($result2['avatar_url'] != "") ? $avatar_url= "<img src='".$avatar_url."' class='image' style='float: left; margin-right: 5px;' alt='' />" : $avatar_url = '';
}
else $avatar_url="";
}
pms.php
if ($CONFIG['enable_avatar']){
($cur_post['avatar_url'] != "") ? $avatar_url= "<br /><br /><img src='".$cur_post["avatar_url"]."' class='image' width='".$CONFIG['mini_thumb_width']."' height='".$CONFIG['mini_thumb_height']."'>" : $avatar_url = '';
}
profile.php
if ($CONFIG['enable_avatar']) {
if (AVATAR_URL !="") $avatar_url = "<a href='avatar_manage.php'><img src='".AVATAR_PATH.AVATAR_URL."' class=\"image\"></a>";
else $avatar_url=" ";
$edit_profile_form_param[] = array('textplain', $avatar_url, $lang_register_php['manage_avatar']);
if (isset($_GET['uid'])) {
$user_data = $cpg_udb->get_user_infos($_GET['uid']);
$avatar_url = $user_data['avatar_url'];
if ($avatar_url !="") $avatar_url = "<img src='".AVATAR_PATH.$avatar_url."' class=\"image\">";
}
}
and
if ($CONFIG['enable_avatar'] && $avatar_url !="") {
if ($avatar_url) $display_profile_form_param[] = array('textplain', $avatar_url,"User Avatar");
}
I think that's all.. pretty easy to change