the reason the w3 site was giving errors was b/c i dont have a doctype heading and also b/c one tag was overlapping, so cascading errors were occuring. i thought i would post the solution for those needing help. thank you dougal for the help, sorry if i frustrated you, but the help is greatly appreciated.
<body>
<a href= "SiteAdmin.php">Home</a>
<a href="Logout.php">Logout</a>
<br/><br/>
<div align="center">
<table border="border">
<form name="adder" action="SiteAdmin.php" method="Post" onSubmit="return newblanks()">
<caption><h3>Site Tools</h3></caption>
<tr><th>Add New User</th></tr>
<tr align="right"><td>Email: <input type="text" name="newemail" size="30" maxlength=20></td></tr>
<tr align="right"><td>Password: <input type="text" name="newpw" size="30" maxlength="30"></td></tr>
<tr align="right"><td>User ID: <input type="text" name="newid" size="5" maxlength="30"> Access Level: <input type="text" name="newaccess" size="5" maxlength="1"></td></tr>
<tr align="right"><td>Last Name: <input type="text" name="newln" size="30" maxlength="30"></td></tr>
<tr align="right"><td>First Name: <input type="text" name="newfn" size="30" maxlength="30"></td></tr>
<tr align="center"><td><input type="submit" value="Submit User"></td></tr>
</form>
<form name="act" action="SiteAdmin.php" method="Post" onSubmit="return oldblanks()">
<tr><th>Activate/Deactivate User</th></tr>
<tr align="right"><td>User ID: <input type="text" name="oldid" size="16" maxlength="30"> Status: <input type="text" name="status" size="1" maxlength="1"></td></tr>
<tr align="center"><td><input type="submit" value="Update User"></td></tr>
</form>
</table>
</div>
</body>