When I set my mom up to use her Macbook Pro (newer and faster than mine) I want to set up an AIM account so she can use iChat. When I start traveling we can use that to keep in touch and save on long distance. But I also want to be able to control or at lease see her screen - like VNC.
Do I have to enable remote management, or screen sharing to do that with iChat?

PS - I decided against opening up her 2009 MBP to look at the built in battery.