CSS Hello! Could someone assist me please?

Try this in your style.css
If you do not want #head-pip area you can delete it or comment it out to reduce file size or just leave it in for latter use.
#head-pip {
background: url(images/header_pip.jpg) no-repeat;
position: absolute;
top: 0;
left: 382px;
width: 48px;
height: 94px;
Add below to your style.css
}
.form1 {
top: 0;
left: 182px;
width: 548px;
height: 5px;
}
Next in the index.htm
<div id="nav">
<div id="head">
<div id="body-right">

Add below
<p class="form1"></p>
</form><input type="text" name="myemailtypetextvalue" size="40" maxlength="50" value = "must be editable, but isn't or is it"></p>

</div>
</div>
</div>

If you leave "head-pip" in you can comment it.
<!-- <div id="head-pip"></div> -->

Hope this helps