Yep, sure.

The first one is asking you to add this here:

Code:
<style type="text/css" media="all">
The second is telling you to remove the semicolon here (on line 125 in your code):

Code:
<img src="http://homepages.plus.net/cgi-bin/count_dyno? bridgethyme_ss";>
The third is telling you that you aren't allowed to have a heading inside a <ul>. So instead of this:

Code:
<ul class="linksbox">
    <h4>Quick Links & Forms</h4>
try this:

Code:
<h4>Quick Links & Forms</h4>
<ul class="linksbox">
The fourth is saying remove the height attribute on the table, as it's not recognized in that position in HTML:

Code:
<table border="0" width="100%" height="30px" div class="footer" cellspacing="0">
Generally, it's better not to use height setting in HTML/CSS, but if you really need it, you can put it on the table cells instead.

The last error is pointing out that the word "div" doesn't belong here, so just remove it:

Code:
<table border="0" width="100%" height="30px" div class="footer" cellspacing="0">
Hope that all makes sense.