Solved same problem!
1. First delete in your theme under images the logo!
repurpose/images/ (Logo)
2. /themes/repurpose/header.php
<!-- header -->
<div id="header-main">
<div id="header-inner">
<div id="logo">
<?php if( file_exists( WebThemes::newInstance()->getCurrentThemePath() . "images/logo.jpg" ) ) { ?>
<a href="<?php echo osc_base_url() ; ?>">
<img src="<?php echo osc_current_web_theme_url('images/logo.jpg') ; ?>" alt="<?php echo osc_page_title() ; ?>" title="<?php echo osc_page_title() ; ?>" />
</a>
<?php } else { ?>
<a href="<?php echo osc_base_url() ; ?>"><?php echo osc_page_title() ; ?></a>
<?php } ?>
</div>
<ul id="nav">
<?php if( osc_users_enabled() ) { ?>
<?php if( osc_is_web_user_logged_in() ) { ?>
<li><span class="link"><?php printf(__('Hi %s', 'twitter'), osc_logged_user_name() . '!'); ?></span></li>
<li><a href="<?php echo osc_user_dashboard_url() ; ?>"><?php _e('My account', 'twitter') ; ?></a></li>
<li><a href="<?php echo osc_user_logout_url() ; ?>"><?php _e('Logout', 'twitter') ; ?></a></li>
<?php } else { ?>
<li><a href="<?php echo osc_user_login_url() ; ?>"><?php _e('Login', 'twitter') ; ?></a></li>
<li><a href="<?php echo osc_register_account_url() ; ?>"><?php _e('Register', 'twitter') ; ?></a></li>
<?php } ?>
<?php } ?>
<?php if ( osc_count_web_enabled_locales() > 1) { ?>
<?php osc_goto_first_locale() ; ?>
</div> (add only this line!!!) <li class="languages">