is there anyway to put PPP (powerpoint presentations) on a website? i have uploaded a few just to see. i cant figure it out! please help!

I had the same problem with a school project a while ago. The only solution I could come up with was just to link to the presentation.
<a href="name.ppt">

can you like, put the powerpoint in an iframe?

You can, but it'll only work in IE.

would you need to upload all the images/sounds?

I think this tutorial (http://libweb.uoregon.edu/fittc/assets/pdf/PowerPoint_Web.pdf) can explain it better than me ^^