That's odd.
I downloaded the actual release to verify, but the section looks like this:
<br />echo <<<EOF<br /> <tr><td valign=top class=tdheader><br /> <b>User Management</b> <br /> </td></tr> <br /> <tr><td valign=top class=lighttable><br /> <a href="{$config['phpurl']}/admin/selectusers.php?Cat=$Cat" target="mainFrame"><br /> Show / Edit Users <br /> </a><br /> <br>
I made the instructions for the official version, don't know why your version differs at that point.
AFAIK all html attributes are quoted with double quotation marks in threads.