Adding Additional Fields to Registration

I’d like to add an additional field for ‘Affiliate’ to my registration form. I’ve already added the First Name and Last Name after looking on your website. I thought I would be able to copy and paste and just change it to ‘Affiliate’ but that isn’t working. My code is below – can you let me know what I’m doing wrong? It would be ideal to include a drop-down menu of different affiliates for the user to choose from. I would also like the email that I receive to approve a user to include this field. Right now it just substitutes that field with the name of the website for some reason…

<form name=”registerform” id=”registerform<?php $template->the_instance(); ?>” action=”<?php $template->the_action_url( ‘register’ ); ?>” method=”post”>
<p>
<label for=”first_name<?php $template->the_instance(); ?>”><?php _e( ‘First Name’, ‘theme-my-login’ ) ?></label>
<input type=”text” name=”first_name” id=”first_name<?php $template->the_instance(); ?>” class=”input” value=”<?php $template->the_posted_value( ‘first_name’ ); ?>” size=”20″ tabindex=”20″ />
</p>

<p>
<label for=”last_name<?php $template->the_instance(); ?>”><?php _e( ‘Last Name’, ‘theme-my-login’ ) ?></label>
<input type=”text” name=”last_name” id=”last_name<?php $template->the_instance(); ?>” class=”input” value=”<?php $template->the_posted_value( ‘last_name’ ); ?>” size=”20″ tabindex=”20″ />
</p>

<p>
<label for=”affiliate<?php $template->the_instance(); ?>”><?php _e( ‘Affiliate’, ‘theme-my-login’ ) ?></label>
<input type=”text” name=”affiliate” id=”affiliate<?php $template->the_instance(); ?>” class=”input” value=”<?php $template->the_posted_value( ‘affiliate’ ); ?>” size=”20″ tabindex=”20″ />
</p>

<p>
<label for=”user_login<?php $template->the_instance(); ?>”><?php _e( ‘Username’ ); ?></label>
<input type=”text” name=”user_login” id=”user_login<?php $template->the_instance(); ?>” class=”input” value=”<?php $template->the_posted_value( ‘user_login’ ); ?>” size=”20″ />
</p>

<p>
<label for=”user_email<?php $template->the_instance(); ?>”><?php _e( ‘E-mail’ ); ?></label>
<input type=”text” name=”user_email” id=”user_email<?php $template->the_instance(); ?>” class=”input” value=”<?php $template->the_posted_value( ‘user_email’ ); ?>” size=”20″ />
</p>

<?php do_action( ‘register_form’ ); ?>

<p id=”reg_passmail<?php $template->the_instance(); ?>”><?php echo apply_filters( ‘tml_register_passmail_template_message’, __( ‘A password will be e-mailed to you.’ ) ); ?></p>

<p class=”submit”>
<input type=”submit” name=”wp-submit” id=”wp-submit<?php $template->the_instance(); ?>” value=”<?php esc_attr_e( ‘Register’ ); ?>” />
<input type=”hidden” name=”redirect_to” value=”<?php $template->the_redirect_url( ‘register’ ); ?>” />
<input type=”hidden” name=”instance” value=”<?php $template->the_instance(); ?>” />
<input type=”hidden” name=”action” value=”register” />
</p>
</form>

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