I have searched every where to find the answer, but I keep reading the same thing, and they either get resolved by the the person asking, but don't explain how it was fixed, or it has been missed by people who know the answer.
In the admin> RSS FEED> area, it asks for an image, do I put a path or just type in the input box jpeg, gif etc.

In the Readme file it says to
"5. You can add to tpl_footer.php or where you want:
<!--bof RSS Feed -->
<div id="RSSFeedLink"><?php echo rss_feed_link(RSS_ICON); ?></div>
<!--eof RSS Feed -->"

Ok I did this in a few different places of the file and got this on the bottom of my site....
"Fatal error: Call to undefined function rss_feed_link() in /home/xxxx/public_html/includes/templates/template_default/common/tpl_footer.php on line 66"

When I tried number 4 "4. You can add to html_header.php somewhere beetwen <head> and </head> tags:
<?php echo rss_feed_link_alternate(); // RSS Feed ?>"

my whole site disappears and get a fatal error message on the top of a blank page.

I'm very sorry about rehashing old questions, but I can't seem to find an answer to the stuff I know very little about.
Thanks for any help.
Chris.