Search Link in Field

This question is about a real estate website where a user sees a property listing, likes it, and goes to the page of the agent who listed that property. On the agent's page I want a link labeled "View all my listings", but only if the agent want's it there (some don't have enough listings). In my "Agents" section I have put a wysiwyg field where I can enter "View all my listings" and link it to a search for all the active listings of that agent. I have set up the JavaScript to show this field only if there is something in it.

<?php if($agentsRecord['view_my_listings']): ?>
<span class="wysiwyg_content"><?php echo $agentsRecord['view_my_listings'] ?></span><br/>
<?php else: ?>
<?php endif ?>

That works fine but I can't figure out how to script the link in the wysiwyg field to show the agent's active listings. I've tried: "/houses.php/status_keyword=For+Sale&agent_name_keyword=Peter" (without quotes) where "houses.php" is the listings viewer. "For Sale" is in the Status field of a section editor called House Listings and "Peter" is in a field called Agent Name in a section editor called Agents. When I click on the link I get "No input file specified. " What should I be doing? Is there a better way to accomplish what I'm trying to do? Your help would be much appreciated.

Farnham