$cms->tag('prev_page_url'=>$prev_url);を、以下に修正。
$cms->tag('prev_page_link'=>'<a href="' . $prev_url . '">' . PREV_ARROW . '</a>') if ($prev_url);
$cms->tag('next_page_url'=>$next_url);
$cms->tag('next_page_link'=>'<a href="' . $next_url . '">'. NEXT_ARROW . '</a>') if ($next_url);
$cms->tag('prev_page_url'=>$prev_url);AutoPagerize が読み込むのは 「次ページ」 なので rel="prev" はついで。
$cms->tag('prev_page_link'=>'<a rel="prev" href="' . $prev_url . '">' . PREV_ARROW . '</a>') if ($prev_url);
$cms->tag('next_page_url'=>$next_url);
$cms->tag('next_page_link'=>'<a rel="next" href="' . $next_url . '">'. NEXT_ARROW . '</a>') if ($next_url);
<!-- BEGIN entry -->AutoPagerize に読み込ませたいブロック要素を
<div class="entry">
<!-- BEGIN entry -->とクラス指定。
<div class="entry autopagerize_page_element">
<!-- BEGIN page -->次ページを表示させたい位置に
<div id="pagenavi"> … </div>
<!-- END page -->
<!-- BEGIN page -->とクラス要素を追加して終わり。
<div class="pageselect autopagerize_insert_before" id="pagenavi"> … </div>
<!-- END page -->
@namespace url(http://www.w3.org/1999/xhtml);
@-moz-document domain("mail.google.com") {
.cBhtOe .NIPhib .Tm9rOd{
font-weight : normal !important;}
span#ds_spam b, .ACpQre a[href$='#spam']{
visibility : hidden !important;}
span#ds_spam b::before, .ACpQre a[href$='#spam']::before{
content : 'Spam' !important;
visibility : visible !important;
font-weight : normal !important;}
}