Once you have found your way to the front gates of TCD, pass under the front arch.
Once you have passed under the front arch and are in front square, continue straight for a minute until you can take a right into another square. You will see two buildings straight ahead of you. The smaller building closest to you with the "checkerboard" design is the Trinity Long Room Hub. This will be where the plenary talk and the round table will be held.
The larger grey (and fairly unattractive) building directly in front of you is the arts block. This is where the majority of the conference will take place. You will see a ramp leading up to automatic sliding doors; head up the ramp and into the arts block. Here, you are on the second floor. Go straight ahead until you see the stairwell and continue up to the 4th floor. There will be a sign in the stairwell pointing you towards the School of English.
There will be signs around the arts block and the Long Room Hub directly you towards the registration and the other rooms in which the panels will take place.
There will also be a map of TCD located in your conference folder.