Okay, might be mistaken and maybe everybody already knows this, however, for those who may not know. I realized people said their Mac's don't recognize their PPC. I had the same exact problem and was wondering how to transfer files, I tried bluetooth, it was just tooo slow.
GOOD NEWS: There is a program called PPC CARD EXPORT by Softick that allows you to transfer files without installing Activesync (of course you can't)
All you have to do is install CARD EXPORT on the Pocket PC and there will be a little icon on the bottom that looks like the activesync icon, then tap it and click "Card Export" Just attach the cradle through USB to your Mac and put your Axim in the cradle, your Mac will read it as a Disk Image and you can search your Axim CF and SD cards. (ONLY CF AND SD CARDS) Beautiful thing is: it's go at USB2 speeds, I've transferred 125MB files in 5-6 minutes!
If you are interested go here, you can get a free trial of the software:
http://www.softick.com/pocket-pc/cardexport2/
I hope this helps fellow Mac users!