Assuming you keep the same SIM card or number, yes.
Nope :(
get your phone checked it might be broken
I would imagine since texts and pic messages are saved into the phone not the phone provider. I would imagine since texts and pic messages are saved into the phone not the phone provider.
use the "loud" settings or get a new phone...
Yes, if your 'phone is capable of receiving texts and he sends them to you.
You can trade your old cell phone in, and get a discount on your new phone; but you will not get the new phone for free when you trade in the old phone.
Yes.
Get a new phone or simply change your phone number.
I need to access my sons texts from his phone to mine
It means you will receive texts (to your mobile phone) with updates.
you cant get texts from home phones stupid!
No, you cannot change texts when you receive them. You have to keep them the way that they are. You can only delete texts, or, depending on what kind of phone you have, you can block texts.