The moral of the story is to pay attention to the size of your files. Could have save myself a lot of trouble by doing so.
Edit: So I didn't need to split it after all. I created it on my laptop, which has Office 2007 on it, converted to PDF, and got the big file. My desktop has Office XP, and when I opened it there, the file wasn't as big. I took a chance and PDFed it on the desktop, and VOILA, the PDF was about half the size it was when I used PowerPoint 2007.
Either way, I can upload it tomorrow, and maybe even get it linked up then too, depending on how my day goes. Horray!