Sitemap Generator Forum

I wanted the sitemap to Exclude URLs that have webform/signup.html

so i entered:
webform/signup.html=
signup.html=

but i still get in the sitemaps these URLs... did i do something wrong?

[ External links are visible to forum administrators only ]
[ External links are visible to forum administrators only ]
[ External links are visible to forum administrators only ]
[ External links are visible to forum administrators only ]
[ External links are visible to forum administrators only ]
[ External links are visible to forum administrators only ]
[ External links are visible to forum administrators only ]
[ External links are visible to forum administrators only ]
[ External links are visible to forum administrators only ]
[ External links are visible to forum administrators only ]
[ External links are visible to forum administrators only ]
[ External links are visible to forum administrators only ]
[ External links are visible to forum administrators only ]
[ External links are visible to forum administrators only ]
[ External links are visible to forum administrators only ]
[ External links are visible to forum administrators only ]

You should add this in Exclude URLs:
signup.html