Download the tool below...
Download - version 0.975 beta
(After saving the file on your computer, just start the setup and follow the install procedure)
From time to time some antivirus scanners may generate false alarms that there is "trojan" in this tool. In case you are not sure who am I and should you believe me, just do not download the sitemap generator, or you can go and download the tool from CNET (they are trusted site and are testing everything listed on on download.com):
If you need some of the old versions for some reason, they are available here.