XML document must have a top level element - HELP

[cdumper]

Hi I use the xml-sitemap gernerator to generate a sitemap for our website [ External links are visible to forum administrators only ]. The url for the xml file is '[ External links are visible to forum administrators only ]; and I use an ISAPI redirect to point [ External links are visible to forum administrators only ] to it. When I configure Google webmasterTools it reaches the xml file but generates the error below. Any idea why? Thx ... c

XML document must have a top level element. Error processing resource '[ External links are visible to forum administrators only ];.

[XML-Sitemaps Support]

Hello,

you should move sitemap.xml file to [ External links are visible to logged in users only ] domain and submit it to Google as [ External links are visible to logged in users only ]