I would check out xml-sitemaps.com. I agree with everyone else this get the job done much easier and much faster.
i use xml-sitemaps.com on my site. i don't know about the other. never used it. i am sure either would be effective. i would get it on your site.
Because the sitemap generator you use didnt read from previously generated sitemap this will cause a high server load to scan/index your web (which will for sure get you suspended if you not using vps or dedi) if you have more than 50k pages. http://wonderwebware.com/sitemap-generator/ I have been using this for my windows sitemap generator since its free plus it index you web way more faster than gsitecrawler.
thanks for the tips. i am looking for a sitemap generator to save me some time and speed up the process