as you want to come in Italy you are welcome.
I had found this ftp link :
Here you can find many release both sccp and sip version. You can unzip the content of the zip file in the tftpboot directory and modify the SEPDefault.xml file about the TERM70.DEFAULTS.loads .
It's better to not try to open it, I don't think it'll be a simple procedure.
I don't know any procedure about the possibilty to use it as a wake alarm.
About the ring tones I think that is possible , actually I don't remember the correct procedure but why not.