I don't get why you can't manage the first and third problem on your own? The PSD files are included in /images/source/ to provide an easy change.
The second problem is easy, just open up all of the html files in your editor and find
Code:
<li><a href="index.html">Home</a></li>
<li><a href="dkp.html">DKP</a></li>
<li><a href="forums.html">Forums</a></li>
<li><a href="progression.html">Progression</a></li>
<li><a href="raid_calendar.html">Raid Calendar</a></li>
<li id="NoBg"><a href="media.html">Media</a></li>
Change it to
Code:
<center>
<li><a href="index.html">Home</a></li>
<li><a href="dkp.html">DKP</a></li>
<li><a href="forums.html">Forums</a></li>
<li><a href="progression.html">Progression</a></li>
<li><a href="raid_calendar.html">Raid Calendar</a></li>
<li id="NoBg"><a href="media.html">Media</a></li>
</center>
That should do the trick.