I know I've posted a thread about this before, but I finally found a SIM card and need to know what to do further. This is an old iPhone that I used when the iPhone came out, and I kinda want to use it now. So this SIM I have was previously used on a Phone line on my Family Plan. That number the SIM was registered to is still in service, but the SIM isn't... The numer is now on a different SIM card. I plug it in, and try activate VIA iTunes, and it's giving me plan rates and such to start the sim card again. I don't think that a SIM can be re-registered, but I'm not sure and wanted to ask for some help before I go through the process. (I don't want another ugly phone line on my bill) Thanks!