iPhone help!

I just bought a new iPhone and Jaime is playing with it right now. All I want to do is be able to upload and view pdfs. Some googling tells me how to do this, except for one thing--I don't know how to install PDFViewer, and I can't figure it out. I found a review blog that seems pretty simple, only, I don't know what this means.

However, there is an App called ‘PDFViewer’ in the Installer by thebigboss.org which allows you to view your PDFs on your iPhone. So we went to give it a try.

Downloading and installing the package is as simple as always through the installer and finished with a message telling you: ‘Please place all PDF files in /var/root/Media/PDF’. So that means you need to find a way to get the PDF files onto the iPhone.

What's Installer? Another app I need to DL? Something already on the iPhone? Any clues or hints or diagrams will be so appreciated!!!