Trying to add a new .php page.

[Saphira]

I'm trying to add a new .php page to my site, with the template etc. I've tried adding it through the pages, but that seems to disable all HTML output, and I'm trying to put a HTML script on the page. I'm trying to add:

<script src="http://static.blitzed.org/cgiirc.js"></script>
<form name="cgiirclogin" method="post" onsubmit="return openCgiIrc(this)" action="[link to cgi.irc file]">
<input type="hidden" name="interface" value="nonjs" />
<input type="hidden" name="Channel" value="#lobby" />
<label>Nickname: </label><input type="text" name="Nickname" value="NK???" />
<input type="submit" value=" Chat! " />
</form>

This works fine on a blank page, but I can't figure out how to add it to the article content so it shows up in the main body of a page. Can anyone help me? :S