To update the Google XML Sitemap V 1.11 to V 1.12:

1 - Run this mysql command. Note that the '17' in the command
has to be changed to whatever group ID your installation has. 
That can be found in the configuration_group table.

INSERT INTO configuration ( configuration_title, configuration_key, configuration_value, configuration_description, configuration_group_id, sort_order ) 
VALUES ( 'Create Now', 'GOOGLE_XML_SITEMAP_CREATE_NOW', 'false', 'Click this link to run the script now<br><center><a href="../googlesitemap/index.php" target="new"><font color=red>Generate All Sitemaps Now</font></a></center>', '17', '15' )

2 - Upload the following files:

googlesitemap/index.php
googlesitemap/sitemap.class.php

3 - Delete the gss.xml file from the root directory.
