robots.txt? invalid

[polarcat]

I recently added a sitemap to my site and I checked it on google webmaster tools.

I came back with a error "Invalid sitemap URL detected; syntax not understood" I have checked the sitemap URL and it comes up.

basically the line I added in my robots.txt file is,
Sitemap: <http://www.MY_SITE.com/index2.php?option=com_sefservicemap&task=xmlmap&no_html=1>

which is where the site xml site map is? i am very confused, easly done (newb)

any suggestions.

Thank you,
Joe