I have been using this great tool for months. It is working for me.
Recently, we upgraded our PHP to 5.2.3 and MySQL to 5.0. We cannot make this tool start to crawl our site any more since then.
The problem is that all the HTML codes below the line "Do not interrupt the script even after closing the browser window until the crawling is complete " disappeared (was truncated), includung the button to start crawling.
Any help is appreciated.
BTW, We have tested this issue with both XML Sitemap Generator v. 2.3 and v. 2.6.