Yes!
U can connect these phones to pc using special kind data cables.
I too hv one such cable for my Nokia 2100.
Its a cable which u hv to fit between Battery and mobile.
Actually first u remove battery from mobile, fit the battery in that data cable, fit that part of cable in which the battery is set into the phone.
U can see there is some pins inside the phone under the battery, thats the exact place where the front part of data cable is connected.
And u can use s/w like LOGO MANAGER and many other available on net for transfering ringtones, logos, changing security code, etc...