Where do i go in Shanghai station to catch train G7038 to Wuxi

The Shanghai Railway Station is located at No.303 Moling Road, and can be reached by subway line 1 and 4.
after you enter the station, there are large LED screens show your train Number, departure time, terminal, and lounge number where you should wait for your train.
when it's time to check in, you can just follow the stream of people to check into the station and get to the platform.