How large is this box and what is it going to be used for?
Nails and screws driven into the edge of plywood, even with Liquid Nails added, are not going to hold well.
You really need an interior frame to hold it together better.
Yeah I know that the plywood wont hold itself together, I actually purchased some wood to nail to the edges of the plywood together but thats not working. Basicly I need to find something that will hold it together using nails.