Ive found a workaround if any one interested in importing their xml in to their normal site sitemap.xml...
what ive done is...
Installed and ran, GSiteCrawler, wich was posted a bit further up by another user. (Thanks)
Configure your site.
Add FTP.
Under Filter/Ban URLs...
Import your robots.txt
Then
Click add, and add the url to your coppermine/gallery directory
You dont want this program to crawl your gallery.
Then go to URL List
If theres anything thats in their, delete it all.
Then click (Re)Crawl at the top.
This will populate the url list with your normal site, minus anything in robots.txt and coppermine gallery.
Then on each line click the tickbox manual.
(You do this so you can delete all non manual entrys (from this script) when you need to update)
Then click the Import arrow, and select Existing google sitemap-file.
open from your
http://web/coppermine/sitemap.xml file
(the sitemap.php script should be configured to dump the file on your server)
Import em, and dont delete your current list, when it asks.
and thats it, then click generate, and it will upload to your ftp settings, and notify google.
When you need to update, boot it up, select Delete all non-manual links, from the url list. And import the same way, and generate.
Things you might want to keep in mind.
You could set your main index.html or main site to 1.0 priority, if you do this, open up the sitemap.php script and edit...
echo '<url>';
echo "<loc>$base</loc>";
echo "<priority>1.0</priority>";
echo '</url>';
to
echo '<url>';
echo "<loc>$base</loc>";
echo "<priority>0.90</priority>";
echo '</url>';
or whatever priority you want for your main coppermine/gallery directory.
Hope this makes sence, and is of some use to anyone.
Regards.