[Zope] Deleting a SiteRoot

[beno]

Hi;
I have a site that I no longer serve. It has a SiteRoot in my Zope server. 
I want to delete the SiteRoot so that I can access the contents. However, I 
can't surf there because any attempt resolves to the current server: not 
mine. I can access this page:
http://webmaster.vi:8080/bandwidth/manage_main
but when I try to click and delete the SiteRoot I'm again sent to the 
current server and my task is not accomplished. What expression can I write 
to delete the SiteRoot?
TIA,
beno