I've used several versions of DRAW, including 8. Whereas 8 is a powerful version, you get that same power in later ones. One thing I like in later versions is that the on-screen view is nicer, the edges are smoother. There are lots more things which DRAW does now than before. In X3 I especially like the Image Adjustment lab for working with pictures. I do a lot of grayscale pictures from RGB at work, and it is easiest to use, including desaturating. It allows me to bring out the midrange tones and adjust contrast, everything. It is really worth it.
Versions 8 & 9 have a lot in common, and X3 in the help menu, allows you to highlight those features new since version 9. Not I'm afraid. But it does allow you to find your way around a bit easier. There are many more scripts written for newer versions of DRAW that are available.
It's nice that your mom is getting a computer with Windows XP on it, but you might want to try the download trial of DRAW X3 as well. There are loads of useful features, exporting to .pdf and .eps is correct, you get .png with transparency. The list of benefits goes on an on.
Anti-aliasing on type is much better in the newer versions of DRAW and the program is very stable, both 12 and X3. X3 has so many useful features. Once you get used to them, you'll ask yourself why you didn't upgrade sooner.
Everyday's a new day, DRAW on what you've learned.