the ringtones i though all u can have is the first 20seconds so u would need a wave editor then u need a media convertor to convert the file from mw or mp3 to what the file the i860 takes
and the wallpaper u can use any pic but u need a photo editor to get the size of the pic and if u have an 860 and want extarnal wallpaper i can tell u how but its not worth it because the app will kill ur batt faster