Hi there and welcome
The phone is a very simple one and as such there is no way to connect it to the computer, the port is only for charging.
What you have to do is share your photos on a website and download it from there. To do this, log in to the mygreatcall.com online portal andregister your existing account with any of the available sites. If you have not registered to use mygreatcall.com, simply visit www.mygreatcall.comand follow the online instructions to do so.
Then once your photos are online, you can right click a photo and select Save Image as and save it to your computer.
Its not altogether straight forward, but its one of the limitations of this phone.
If you have any problems, or would like any additional information or assistance, please do not hesitate to let me know.
Else if you can take a second to rate my service by clicking one of the stars at the top of the screen then submit, that would be greatly appreciated.