Listings Plugin Help

I am using the following listings plugin on my homepage. I want it to only display listings from a certain category, so I added the 'category' parameter' but still displays from all categories. What am I doing wrong?

Code:

{listings limit="15" caregorty="3" featured="N" sort_column="dateadded" assign="new_listings"}
        {foreach from=$new_listings item="entry"}
        <div>
            <div>
                <a href="{$entry.link}">
                <img src="{$entry.image}" alt="{$entry.title}" title="{$entry.title}" style="width: 140px;"/></a>
            </div>
            <div>
                <a href="{$entry.link}" title="{$entry.title}">{$entry.title}</a>
                {if $entry.price == '$0'} Price NA {else} <p style="height: 8px;"><b>{$entry.price}</p></b>{/if}
                <p>{$entry.description|truncate:240}</p>
                <hr>           
            </div>
        </div>
        {/foreach}