Rosina, after looking at the website, it seems that you have managed to replace blogroll with another widget. However, if you want to reorder the ‘sidebar areas’ or ‘widget areas’ where you put the widgets in (called sidebar-something), you can play with this part of code inside the theme files:

<div class="bb-tbase"><?php dynamic_sidebar('sidebar-default'); ?></div>
<div class="bb-t13 bb-fa"><div class="bbin-c1">
<?php dynamic_sidebar('sidebar-postnav'); ?>
</div></div>
<div class="bb-t17 bb-fc">
<?php dynamic_sidebar('sidebar-links'); ?><br />
<?php dynamic_sidebar('sidebar-postrelated'); ?>
</div>
<div class="bb-tbase">
<?php dynamic_sidebar('sidebar-bottom'); ?>
</div>

Please let me know, if you have any questions about how to do anything particular.