For standard audio recording, a Creative sound card would be fine, but if he wants to get more into the professional realm, i.e, allow more connections/recording features, etc, he'll have to look elsewhere.
Creative cards are meant for powering games. That is what they are mostly built to do.
This card isn't too bad, but you'll need to get him to find a phono to 3.5mm plug for connecting the guitar to the PC most likely:
I would honestly though, perhaps try and go for another make. It does offer good recording spec though with 96khz recording, and Optical in's out's however which will prove useful.