Oh, well, sort of... but hey, I think I found something of relevence, DADA.
You have this code:
<form action="http://www.texascampingforum.com/2006/index.php?page=parks/advanced_results" method="get" name="search">
<input name="q" type="text" value=" <?php echo $q; ?> " <input name="search" type="submit" value="Search" style="float: right">
</form>
Your text input name="q" is not closed and the submit button has the name="search". However, if you are checking on the page you are posting to, your action page, if "submit" is set, you might want to try this:
<form action="index.php?page=parks/advanced_results" method="get">
<input name="q" type="text" size="20" />
<input name="submit" type="submit" value="Search" />
</form>