What each person sees when they click on 'Properties' depends upon the make and model of the printer that they're using. So I can only provide you with
examples of what you'll need to look for when you do so. (You'll see something roughly similar but, unless you've got the same type of printer as me, not exactly the same).
When I click on 'Properties' I see this:
http://i58.tinypic.com/v7qetd.jpg
As you'll see (towards the bottom left of the box) I've got the options to switch between 'Portrait' and 'Landscape'. So, as I've already suggested, you need to get that bit right first. However, at the top of the box, you'll see that there are various tabs, including 'Page Setup'. Clicking on that one then takes me to here:
http://i58.tinypic.com/v7qetd.jpg
In the 'Page Layout' section you'll see that there are various options, including 'Fit-to-Page'. Selecting that one should prevent your image from being spread across several pages.