I installed the xml site map generator plugin for wordpress , it seems to work here > http://blog.blue2x.com/sitemap.xml. Im getting errors in the google webmaster central, theres a red x. I got around twenty errors there . mostly this error below with different links in my blog > Paths don't match We've detected that you submitted your Sitemap using a URL path that includes the www prefix (for instance, http://www.example.com/sitemap.xml). However, the URLs listed inside your Sitemap don't use the www prefix (for instance, http://example.com/myfile.htm). So how I can solve this in the google web master central ? Should I create my own sitemap using this tool xml-sitemaps.com ? Need your opinion guys.
try a different sitemap plugin there are tons of them, maybe another one will work, creating a manual site map can be a pain because you'll have to regularly update it, stick with a plugin would be my answer, oh and maksure that you set up your redirect in wordpress.