Thanks for your response.
As I probably won't be around for most of tomorrow, I'll provide the PDF information in case you need it:
When Adobe introduced the PDF format they provided Adobe Acrobat Reader for free (so that everyone could view PDFs). The idea was to ensure that PDF became a universal format (which it has), so that people would want to create PDF files, as well as view them. However their software for creating PDFs cost mega-bucks, so programmers looked for ways to produce PDFs without using Adobe software. The solution which they came up with (and which is used by lots of free programs) is to trick a PC into thinking that it has a second printer attached to it.
You should download and install this free program. (There are lots of similar ones, but this is as good as any - it's what I use):
http://www.dopdf.com/
Then, when you want to create a PDF (which you can do from ANY program which has a 'print' function, such as Word, Publisher, Internet Explorer, etc), you go to File>Print. You then choose (usually from a drop-down menu) the 'printer' you want to use. One of the printers offered will be your usual one (Canon, HP, etc); the other will be 'doPDF'. Select that new 'printer'. Then click the 'Browse' button to choose where you want the file to be saved. (e.g. 'My Documents'). Click 'OK'.
When you want to mail the PDF, create a new mail, click to add an attachment, navigate to the location of the file and double-click on it.
Chris