MyBB Community Forums

I set up a a board for an aging group of people. I keep getting complaints on how hard it is to navigate the board.
99 percent are computer challenged and have trouble getting email.
  Are there any vids out there for basic navigation; how to register, post threads etc... or will I have to put something together myself.

a brief guidance available through help section (eg. see this) & it can be modified to suit your requirements

admin panel >> configuration >> help documents