Hi Jas,
It's no bother. That's what the forums are for! Questions!
Hopefully your running Office 2007. If you are, that will make the process much simpler. I wrote and article here:
http://www.groovypost.com/howto/microso ... df-or-xps/ which gives you a URL to download a free add-on to Microsoft Office. It lets you save .doc and .xls files in either .PDF or the Microsoft competing format .XPS
For Word 2003...... I think you will need to google a 3rd party product. I don't know of a free version. I'll look around and update this thread if I find one.
Now, for converting .pdf to .doc again, I don't know of a free product. I'll keep my eye out and update the thread.
Hope this helps!