The VBSEO Sitemap generator is great -- for your forum. But many of us will also need another program in addition that will make sitemaps for the rest of our website.
What does everyone else use?
I also wanted to give a huge warning about testing these other programs out. I tested one out that apparently (without notice) uses IE's cookies. So as it was crawling my website, it was DELETING comments from my journals and wreaking havoc with the forum! I had to restore from backup even after aborting it 10% in. So I guess the moral is log out of your forum before ever running any type of crawler (besides vbseos's).