The monorail to Epcot should be operating at least an hour prior to Epcot's opening. The various lines are plainly marked. You will look up as you approach the monorail station. You will see three entrance signs..one for the Express Monorail, one for the Resort Monorail and one for the Epcot Monorail. No need to transfer...just walk up that lane, wait for the monorail to come and get on.