I think this would make it better for easyer codeing later.
Site url
update add this to the en-gb.inc.php
$smarty->assign('LAN_209', 'Site URL');
go into mysql and run this
alter table pp_config add column siteurl varchar (255) NOT NULL default 'http://yoursite.com';
edit the admin.options.php
add
mysql_query("UPDATE pp_config SET siteurl= '$_POST[siteurl]'");
add this to option.tbl about the <!--Footer-->
<tr>
<td class="first"><strong>{$LAN_209}</strong></td>
<td class="last"><input name="siteurl" type="text" value="{$options[options].siteurl}" size="70" maxlength="200" /></td>
</tr>