Wah piang eh. Read this thread don't know whether to laugh or
cry. 
From the sounds of it, I think our tech-savvy friend wants to
simply convert a .doc to a .pdf.
The simplest program you can use is Click To Convert. Go to
http://www.clicktoconvert.com/index.html, download and install the
program. It's been a while since I installed it on my computer, but
in the installation you may need to specify the option to put the
Click To Convert button on your Microsoft Office toolbar.
Once you've installed the Click To Convert, open your Word document
and click the Click To Convert button, and it will automatically
produce a PDF version of your document for you.