looking at the source of your p[age, i can see a number of links that use HTTP addresses:
<div><a href="http://www.casaa.org/Electronic_Cigarettes.html" target="_blank" style="color:#FFF"><img src="../images/template_images/casaa-graphic.gif" border="0" width="66" height="65" alt="Link to Cassa" longdesc="../images/template_images/casaa-graphic.gif" /></a><br />
<span style="color:#FFF; font-size:12px">Support CASAA</span></div>
<p class="column"><span style="color:#F0F">Additional Resources:</span><br />
<a href="http://www.e-smokers-forum.com/" title="Link to E-Smokers-Forum" target="_blank" style="color:#FFF">ESF</a><br />
<a href="../why_do_people_smoke.php" title="Link to Article" style="color:#FFF">Healing Lungs</a><br />
<a href="http://en.wikipedia.org/wiki/Vegetable_Glycerine" title="Link to Wikipedia VG Info" target="_blank" style="color:#FFF">VG</a><br />
<a href="http://en.wikipedia.org/wiki/Propolene_glycol" title="Link to Wikipedia PG Info" target="_blank" style="color:#FFF">PG</a><br />
</p>
these can cause the type of issue you report.