"Crawling password protected site"

Hello everyone,
I know this question has been asked before, but I've looked around and can't seem to find a solution. I'm trying to crawl a distributor's website to get product inventory details and I can't figure out where to put the site's username and password in the crawl web process. I've copied my code below, could someone tell me where the login info should go?
Thanks,

<?xml version="1.0" encoding="UTF-8" standalone="no"?>
<process version="5.2.008">
  <context>
    <input/>
    <output/>
    <macros/>
  </context>
  <operator activated="true" class="process" compatibility="5.2.008" expanded="true" name="Process">
    <process expanded="true" height="100" width="212">
      <operator activated="true" class="web:crawl_web" compatibility="5.3.000" expanded="true" height="60" name="Crawl Web" width="90" x="112" y="30">
        <parameter key="url" value="www.mydomain.com"/>
        <list key="crawling_rules"/>
        <parameter key="output_dir" value="/Desktop/"/>
        <parameter key="extension" value="html"/>
        <parameter key="max_pages" value="25"/>
        <parameter key="domain" value="server"/>
        <parameter key="delay" value="500"/>
        <parameter key="max_page_size" value="1000"/>
        <parameter key="obey_robot_exclusion" value="false"/>
      </operator>
      <connect from_op="Crawl Web" from_port="Example Set" to_port="result 1"/>
      <portSpacing port="source_input 1" spacing="0"/>
      <portSpacing port="sink_result 1" spacing="0"/>
      <portSpacing port="sink_result 2" spacing="0"/>
    </process>
  </operator>
</process>