Gravatar Plugin Is Broke?

My Gravatar Plugin is broken, apparently. I tried to get to Skippy.net to see if something had changed, etc., but it keeps timing out trying to get there.

Anyone else having problems?

Here’s the code as it is at the moment:
<?php if (function_exists('gravatar'))
{
if ('' != get_comment_author_url())
{
echo "<a href='$comment->comment_author_url' title='Visit $comment->comment_author'>";
}
else
{
echo "<a href='http://www.gravatar.com' title='Create your own gravatar at gravatar.com!'>";
}
echo "<img height='80' width='80' src='";
echo gravatar($comment->comment_author_email);
echo "' alt='a gravatar' class='gravatar' /></a>";
} ?>

Only my avatar appears to be working.