exporting imessages

hey there,

my husband and i are in the midst of a custody battle with his sons mom, we are going for full custody, and shes said numerous incriminating things via imessage and we are looking for a way to get those messages onto our pc in order to be able to print them off for court purposes.

looking for the best way to do so that will also provide time stamps on the messages.

any suggestions are greatly appreciated.

thank you!