Generation sitemap for domain aliases

Hi,

I have some domain aliases to my main domain. In my vbulletin options $vbulletin->options['bburl'] set to blank. But sitemap generator creates sitemap_index.xml.gz listed below:

<?xml version="1.0" encoding="UTF-8"?>
<sitemapindex
xmlns="http://www.sitemaps.org/schemas/sitemap/0.9"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="
Index of /schemas/sitemap/0.9
http://www.sitemaps.org/schemas/sitemap/09/siteindex.xsd">
<sitemap>
<loc>/sitemap_1.xml.gz</loc>
<lastmod>2008-06-30T14:05:07+00:00</lastmod>
</sitemap>

Is there any way to generate sitemap whith using $_SERVER["SERVER_NAME"] ?

****
Sorry for my English It is not my native language

Can I get an answer on my question?

This is a HORRIBLE idea for SEO.

you want ONE domain for ONE content.


if you have multiple .com's, you should set them up as parked domains, and then 301 with htaccess to your root/true .com