Hey guys and gals, I run a website called MarinersMania.com, and I was wondering if there is any way to get an RSS feed on the front page of my site for the following feed:

Mariners Mania

If you know how to get the feed on the front page, please let me know. Even a little bit can help, as I'm clueless. THANKS!

You need to use a server side language to parse the RSS feed and turn it into HTML.
You have PHP on your server, so I suggest you use that - take a look at this:
PHP: XML Parser Functions - Manual