You ensure cross-browser and cross-platform support by having your code validated.
It looks better now.
I took the liberty of fixing your errors for the validation:
Code:
For line 77, replace this:
<p><span style="font-size: 12px;">
<p style="text-align: center;"><em>Integrity-Honesty-Privacy-Respect-Professionalism</em></p>
</span></p>
With this:
<p style="text-align: center;"><span style="font-size: 12px;">
<em>Integrity-Honesty-Privacy-Respect-Professionalism</em>
</span></p>
Code:
For line 80, replace this:
<p><span style="font-size: 12px;">
<p style="text-align: center;"><a target="_blank" href="http://www.nacrbo.com/static.php?q=code_of_conduct"><strong>ACRBO Code of conduct</strong></a></p>
</span></p>
With this:
<p style="text-align: center;"><span style="font-size: 12px;"><a target="_blank"
href="http://www.nacrbo.com/static.php?q=code_of_conduct"><strong>ACRBO Code of conduct</strong></a>
</span></p>
The reason you received those errors is because you added too many <p> and </p> where they were not needed.
Also, it only passed tentatively, because you your <meta> tag is rather strange and I'm not quite sure why it's in the format it's in. Until you change it to something like this:
Code:
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1" />
It will not validated unless it's changed.
Anyway, it looks good now that the repetitive navigation on the bottom was removed.