thanks for the link amy, im sure it will be useful in the future!
as for this i started to figure it out right after i posted this. what i did was edit the newpost_attachment template and basically eliminated everything but the <fieldset> tags. then added some <p>explaination</p> with
Code:
<input class="button" type="button" value="button text here" onclick="window.open('http://www.uploader.url.here')">
following it. that did the trick for me. im sure there is probably a better or cleaner way of doing this, but i was kinda in a hurry and it got the job done