I managed to muddle through Scott Mitchell's tutorials for master page usage. I have a new test page up and running, which integrates some basic css positioning and a test master page. This page is a work in progress, so it will change dramatically as my skills with CSS improve.
I discovered that IE 7 and Firefox pad the <form> tag differently, so I had to add the following to my css file:
form
{
margin:0;
}
Happy coding!