I am having a similar problem. I bought this yesterday and cannot get the sitemap generated.
Note sure if I am doing something wrong?
Links depth: 2
Current page: page/99/
Pages added to sitemap: 275
Pages scanned: 1720 (21,162.4 KB)
Pages left: 657 (+ 1457 queued for the next depth level)
Time passed: 2:08:25
Time left: 0:49:03
Memory usage: 3,041.8 Kb
Auto-restart monitoring: Sun Dec 04 2011 09:33:25 GMT-0800 (Pacific Standard Time) (42 second(s) since last update) Resuming the last session (last updated: 2011-12-04 16:49:36)