Adding pictures to home page of WP

There are a few ways you can do that. You can use CSS image replacement techniques, you can take a look at the Kubrick theme to see how it’s done there, you can code the image directly into the page using img tags. Here’s a suggestion (I believe this is taken directly from Kubrick):

Your site has that top H1 tag all on its own. Wrap it in a DIV so that your code looks more like this:
<div id="header">
<div id="headerimg">
<h1><a href="http://otr-reviews.com">OTR Reviews Podcast</a></h1>
</div>
</div>

Then, use this as your CSS:

#header
{
background: url(“http://yoursite.com/yourimage.jpg”) no-repeat bottom center; /* change this */
}

#headerimg
{
margin: 0;
padding: 0;
height: 200px; /* change this */
width: 100%;
}

#headerimg h1
{
margin: 0;
padding: 0;
}

#headerimg h1 a
{
position: relative;
left: 0;
top: 0;
display: block;
width: 740px; /* change this */
height: 190px; /* change this */
margin: 0;
padding: 0;
text-indent: -5000px;
}

Then ask your friend to do it for you. If this is beyond your abilities, you need someone else to do it for you. No shame in that, just know your limits. This is obviously one of them. Good luck.