The one that is on the header.
Below is the code that I'm using, but cannot adjust the width of the text input box. I've bolded the line that creates the text input box.
Code:
<div class="clear">
<div class="searchbar">
<form action="<%config.db_cgi_url%>/search.cgi">
<label for="searchbox">Search</label><br>
<input type="text" id="searchbox" name="query" value="<%if query%><%escape_html query%><%endif%>" class="text" /> <%if category_id%>
<input type="radio" id="searchentire" name="catid" value="" checked="checked" />
<label for="searchentire">All directory</label><br>
<input type="radio" id="searchcat" name="catid" value="<%escape_html category_id%>" />
<label for="searchcat">This category</label><br>
<%endif%><input type="submit" name="Go" value="Go" class="submit" /><br>
<a href="<%config.db_cgi_url%>/search.cgi">Advanced Search</a>
</form>
</div>
</div>