open /components/com_registration/registration.php

add on line 15:
require_once ($mosConfig_absolute_path . '/components/com_yanc/codehacks/reg_integration.php');

replace:
[code]
	case "saveRegistration":
	saveRegistration( $option );
[/code]

with:
[code]
	case "saveRegistration":
	saveRegistration( $option );
	saveYancRegistration();
[/code]

open /components/com_registration/registration.html.php
replace:
[code]
    <tr>
      <td><?php echo _REGISTER_VPASS; ?> *</td>
      <td><input class="inputbox" type="password" name="password2" size="40" value="" /></td>
    </tr>

    <tr>
      <td colspan="2">&nbsp;</td>
    </tr>
[/code]

with:

[code]
    <tr>
      <td><?php echo _REGISTER_VPASS; ?> *</td>
      <td><input class="inputbox" type="password" name="password2" size="40" value="" /></td>
    </tr>

    <tr>
      <td colspan="2">&nbsp;</td>
    </tr>

<?php showLists(); ?>
[/code]