Why isn't there any buttons in the editor section?

Check your HTML, it must contain styles.php:

<head>
...
    <link rel="stylesheet" type="text/css" href="{$wwwroot}/styles.php">
...
</head>

If you are using jQuery on your page it must be at least version 1.3.0 (the button uses live() function in jQuery library which the previous versions do not have). Or you can use the jQuery that comes with the CMS (we try to keep latest versions):

<head>
...
    <script type="text/javascript" src="{$wwwroot}/js/jquery.js"></script>
...
</head>

Versions older than 4.6.1 must also contain editor namespace in the html tag:

<html xmlns:editor="http://www.saurus.info/">