Off the top of my head I would guess that in BlogEntry a section like <% control ChildrenOf(/blog/) %> will give you a set of all the children. (assuming the BlogHolder's url is /blog/)

But that won't really get you pagination, just all of them at once.

The template file, BlogPagination, relies on DataObjectSet's NextLink and PrevLink in sophisticated ways.

Turns out BlogEntry extends Page, so you can just treat BlogEntries as pages, i.e. using the PrevNextPage function (that's in another forum post).

public function PrevNextPage($Mode = 'next') {
      if($Mode == 'next'){
         $Where = "ParentID = ($this->ParentID) AND Sort > ($this->Sort)";
         $Sort = "Sort ASC";
      } elseif($Mode == 'prev') {
       $Where = "ParentID = ($this->ParentID) AND Sort < ($this->Sort)";
       $Sort = "Sort DESC";
      } else {
         return false;
      }
      
      return DataObject::get("SiteTree", $Where, $Sort, null, 1);

   }