you cand do it man ? you dont know why ? becouse you have a cashparking on this site this domain is empty
there is no need of a tuition to create a sitemap.xml .... just open that site and you will get the methods
Yep just dont ste the priority of every page to 1.0 as Google are now issuing sitemap warnings for this.
Go through the sitemap sticky and you can create one without any difficulty. Remember to allot the priority to different pages as per the necessity and don't set it at 1.0 for all pages
I think you may have got the url wrong. It should be http://www.xml-sitemaps.com Just enter the start url and then click the big Start button and the sitemaps will be created for you.
Or you should just use one from dtools .. works perfectly... http://www.dtools.net/xml-sitemap-generator/