templates/admin/username_change.tpl
<div class="hms">
<div class="box">
<div class="title"> <h1>User Name Change</h1> </div>
<div class="box-content">
<!-- BEGIN error_msg -->
<span class="error">{ERROR_MSG}<br /></span>
<!-- END error_msg -->
<!-- BEGIN success_msg -->
<span class="success">{SUCCESS_MSG}<br /></span>
<!-- END success_msg -->
{START_FORM}
{USERNAMES}<br />
{SUBMIT}
{END_FORM}
</div>
</div>
</div>