xbee_api.lib and other associated files in Dynamic C 9

I have an old RCM3710 module I picked up a long time ago that I just recently started playing with for hobbyist microcontroller projects.  I was going to play around with XBee connectivity, and although the Digi website offers a link to the "Dynamic C - An Introduction to ZigBee" PDF in the documentation section for Dynamic C 9, it would appear that the necessary xbee_api.lib file does not exist in any of the Dynamic C 9 distributions.  Is it simply not an option for the RCM3xxx modules to use Digi's XBee library, or is there some trick that needs to be done to pull the needed files out of Dynamic C 10 instead?

On a related note, are the RCM modules in general the right path to be taking for hobbyist purposes?  I haven't liked the other platforms I've looked at (Arduino and Basic Stamp) quite as much as I like the Rabbit, and I'm fine with writing code to interface with various external devices when necessary, but at the same time I'd like to keep it to a minimum when it comes to things like XBee modules.  Are the Rabbit modules less hobbyist-friendly, or is it just a matter of me needing to buy a more current module?