Enrolment

I have imported a new course to moodle by IMS import, and I have no problems. But now, I'm trying to enroll a student on this course and I allways obtain the same result:

Found file c:\xampp\htdocs\moodle\importIMS\importAlu.xml
Created user record for user 'ejls' (ID number emilio).
Added 0 student(s) and 0 teacher(s) to course CursoEJLS
Process has completed. Time taken: 0 seconds.

It import and create the student but no enroll the student on the course.

This is de archive that I'm using for de import:

<?xml version="1.0" encoding="utf-8"?>
<enterprise>
  
 <person>
    <sourcedid>
      <source>Moodle</source>
      <id>emilio</id>
    </sourcedid>
    <userid>ejls</userid>
    <name>
      <fn>Emilio Leiva</fn>
      <n>
        <family>Leiva</family>
        <given>Emilio</given>
      </n>
    </name>
    <email>e-mail</email>
      <extension>
          <WEBCREDENTIAL xmlns="emiliohttp://www.webct.com/IMS">emilio</WEBCREDENTIAL>  
      </extension>
  </person>

<membership>
    <sourcedid>
      <source>Moodle</source>
      <id>CursoEJLS</id>
    </sourcedid>
    <member>
      <sourcedid>
        <source>Moodle</source>
        <id>ejls</id>
      </sourcedid>
      <role roletype="01">
        <status>1</status>
      <!--  <extension><cohort>unit 2</cohort></extension> -->
      </role>
    </member>
  </membership>

</enterprise>

Anybody can help me?

Thanks