Ho well, i'll do it even easyer for your poor fingers to get a break
Once you get XBCD installed, you can just load the profile i created for this and apply it, and you'll be set up.
Get the profile here :
http://depositfiles.com/files/6jlbyq4nv (feel free to host it anywhere safer for sure)
when XBCD installed successfully you just need to get in the driver frontend (setup utility .. controller preferences .. whatever) :
And then you hit open, load the profile, and apply.
There you will get the dpad mimic X/Y axis, therefore working on dmt, and even the two triggers as buttons 7-8.
hope this helps.
PS : after this, it's easy to switch back to microsoft official driver by just selecting "update driver" in system preferences then letting the system browsing for your driver emplacement you'll get the choice between the installed drivers on your system, eg, microsoft official x360 one, or XBCD.