Dear Friend i personally use the following URL to generate my sitemap and it's free and cool http://www.auditmypc.com/free-sitemap-generator.asp
I use it all the time and it works just fine, and it's the one Google recommends, so no hickups with the result. G.
I use it but hosted on my server and it do right now a good job plus the script is run by cron and when the crawl finish the script ping Google with the new scan And i can it check with Google webmaster , no problem whatsoever Cool script
Still the most effective generator with one caveat. I've tried to create a map of a very large site, in excess of 200,000 internal links and it failed. If anyone knows of anything else to try, I'd love to hear from you!
do you know how compatible is the site map xml generated for yahoo search engine? i known it is great for google
xml-sitemaps.com is good it only do upto 500 pages. Anyone know anyother generator which supports more pages ? auditmypc.com/free-sitemap-generator .