extracting files from an out of date phone

i have a sony ericsson z500 phone from cingular that i bought probably some time back around 2005. The old phone’s charging port is shot so i stopped using it and got a new one.

the problem i have is that i have audio, video and picture files from my youth trapped inside this (now dead) phone! i have the sim card but i’m afraid the files may actually be stored on the phone itself

please if anyone has an idea or would know how to get these files onto a computer somehow