You can use mp3 ringtones on this device, so use Audacity (free download) to edit the track and then upload it to your phone and set it as your ringtone.
The main stumbling blocks would be that iTunes tracks are (AFAIK) DRM-protected, so you would need to get around this. I believe jHymn will do this, though there are newer softwares as well. Also, if the phone doesn't come with a data cable you would either need to get one or to use bluetooth (if you have it on your PC) for the transfer.