Is there a way to have the system email me if there is a reply to a message I have posted to? If not, I think it would be a good idea. I am having trouble keeping up with my life....

That option is available only if you started the topic. Otherwise when you get here, click on your name (up on the right hand side) and it will display your most recent posts. That's the easiest way to get to those forums. Hope this helps.