I got the M-Audio Audiophile, and to get it running with my Laptop was a nightmare, maybe you already found the related thread:
https://homerecording.com/bbs/showthread.php?t=135938
Good news it that the M-Audio hotline replied quickly and competent, and it finally worked, I can now record with good sound quality (using a cheap
Behringer UB 1002 Eurorack as mic pre-amp/mixer) and Adobe Audition as recording software.
The Fasttrack USB obviously has already a pre-amp included, and they claim you don't have to install a driver for Mac or Win XP (... wonder how that works).
Anyway, if you consider recording an acoustic guiter with good sound quality, you might wish to use a condensor mic instead of a (cheaper) dynamic mic, and the condensors need a 48V power supply which is not provided by the Fasttrack.
The Fasttrack looks like a pretty cheap (and maybe o.k.) starting kit, but hard to extend if you wish to upgrade your equipment later... anyway, playing myself around at the cheap end of home-recording (and happy with the results), I'd say, why not give it a try?
By any means, before buying any USB related hardware, make sure you can bring it back to the dealer without trouble if you can't get it working!!
Good luck!
joerg