The RSS plugin used the Universal Feed Parser by Mark Pilgrim. (new in developer version)
With this lucidTag you can easy integrade a RSS news feed into your CMS page:
The look of the generated html code dependent of the internal page: ./media/PyLucid/internal_page/RSS/RSS.html
You can change these internal page, described on the documentation page.
There exist a way to create multiple internal pages. If you need this, you must create a new preferences entry witch specify the used internal page. You
The current RSS plugin version doesn't use caching. On the other side, the normal page cache does the job for it. You must setup the cache backend.