For security reasons it is strictly impossible (forbidden) to include PHP scripts in uploaded web pages. You can, however, use javascript.
Joseph
Oops! that docstyle.php file is a remnant of a really old Moodle version (1.4 I think) and it should really have disappeared altogether from current distributions. There is no way you can change your site's appearance by changing things in that file.
In one of your previous messages you wrote: "I've taken out every instance of #FFFFFF in the WHOLE sheet and still I see white in the background yet when I test my sheet "
Of course, white is the default background color in browsers! If you don't declare another color for your background, it will be white.
I've just looked at your site, http://www.cosmicoutpost.co.uk/moodle/login/index.php and the text is indeed yellow, but the background is white, which makes the text hardly legible. If you simply added this declaration to your theme's styles_color.css:
body {background-color:#000000}
it would look much better.
Hope that helps,
Joseph
Don't know what you mean by "pushed over" in this context, sorry.
in file header.html remove the striked-out bit, that's what prints your site's name.
<h1 class="headermain"><?php echo $heading ?></h1>
It would help if one could have access at least to your site's home page without loggin in. If you can, you can give me temporary access so I can help you better.
Joseph