Thanks to everybody,
-I have installed WordPress Version 1.2
-My blog test website http://www.exportfocus.com/xblog1/
-The thread I was telling about is .../support/topic.php?id=15974
To deliver you more detailes about my experience, I add:
when in admin. suite I click over the link "....htaccess file is writable by WordPress, you can edit it through your template interface"
I get 'Internal Server Error....'; also I have seen I have no any .htaccess file into 'xblog1' directory,
so I have created one, have written mod_rewrite rules suggested - by 'options-permalink' - in it, but after upload in the directory,
I got also for main page http://www.exportfocus.com/xblog1/ Internal Server Error.
(Now I have cancelled the file so you can view again the site with the rss problem)
Thanks for your help