Need help getting my podcast up

Question

I have a website (nunu.com) and I have created a video for which I need to create a podcast for.
I am an idiot and can't figure this process out.
Here is what I did so far
(1) uploaded my movie to my server
http://www.nunu.com/PODCASTS/BRASSICACEAE.mp4
(2) tried to create a feed.xml file
- I downloaded a sample .xml file and plugged my info in as best as possible
- I uploaded this "feed.xml" file to my server
http://www.nunu.com/PODCASTS/feed.xml
When I went to verify the xml file with , I got an error.
I pasted the xml file in case anyone wanted to see it.
Thank You
nunu
<?xml version="1.0" encoding="UTF-8"?>
<rss xmlns:itunes="http://www.itunes.com/dtds/podcast-1.0.dtd" version="2.0">
<channel>
<title>nunu.com</title>
<link>http://www.nunu.com</link>
<language>en-us</language>
<copyright>℗ & © 2006 marcello fracassa</copyright>
<itunes:subtitle>LIGHT & SOUND</itunes:subtitle>
<itunes:author>Marcello Fracassa</itunes:author>
<itunes:summary>grab your beer and winstons and come explore nunu.com </description>
<itunes:owner>
<itunes:name>Marcello Fracassa</itunes:name>
<itunes:email>[email protected]</itunes:email>
</itunes:owner>
<itunes:image href="http://nunu.com/PODCAST/NUMB1200x1200sepia.jpg" />
<itunes:category text="comedy">
<itunes:category text="arts"/>
</itunes:category>
<itunes:category text="TV &amp; Film"/>
<item>
<title>Brassicaceae</title>
<itunes:author>marcello fracassa</itunes:author>
<itunes:subtitle>cooking Brassicaceae</itunes:subtitle>
<itunes:summary>cooking Broccoli on the Upper East Side</itunes:summary>
<enclosure url="http://nunu.com/PODCASTS/BRASSICACEAE.m4a" length="1830633" type="audio/x-m4a" />
<guid>http://nunu.com/PODCASTS/BRASSICACEAE.m4a</guid>
<pubDate>FRI, 25 AUG 2006 19:00:00 GMT</pubDate>
<itunes:duration>:17</itunes:duration>
<itunes:keywords>broccoli,cooking,marcello,nunu,salt,exciting</itunes:keywords>
</item>
</channel>
</rss>
12" powerbook   Mac OS X (10.3.9)   1 GB RAM

Answer 1

The podcast file doesn't exist. Neither does the video file, at least not in the directories that you give below. Doublecheck your directory names. Is PODCASTS really all uppercase? Generally, you should use all lowercase for paths and filenames, it makes it simpler all around.
Your itunes:image is actually in the PODCASTS directory, not the PODCAST directory. Make the image size smaller!!! 1200 x 1200 is enormous. The image is 640K. You need to keep the image size down to no larger than 300 pixels wide and tall.