[tenzin]

hi everyone!!
i created a sitemap in php for users, which i came to know is not supported by google, yahoo and msn. so, i then, created .xml sitemap for google. then i came to know that for yahoo, there is a need of .txt file. huh!!! three sitemaps for a site? its not long process but looks odd!! a site with three sitemaps? ROR sitemap promises to do the work for all SEs. And it said it is an online sitemap generator? Anyone? Any idea of how it works? And sitemap generates ROR file as ror.xml. So, should i keep it as it is or change it to sitemap.xml?