Jane, Why would searcher send his email address to you for steps? Fishing for a client?
Searcher, It is my understanding and I'm sure other agents will contribute/correct me if I'm wrong but to list your home on Trulia you must have your home listed with an agent. That agent can then put that listing on Trulia.
If you are doing an FSBO you may do a blog with information/photos ect.. about your home.