Thanks for the tips....I ran out of time on the project, but will try prosper next time around. Fortunately, I was able to get my overhead slides put together with the seminar class. A few things that worked for me (perhaps they will work for you with the prosper class as well) Once I made the tex file, and generated the dvi, I used the command: dvips -Ppsfonts -tletter -tlandscape -o file.ps file.dvi with the correct input and output file names. That gave me a postscript with the correct postscript fonts, which was US letter size. Then I used ps2pdf to generate the pdf file.
I also stumbled across the texdoctk package in the process.....it's nice to see all of the documentation in an organized form.