Welcome to the forums, vinceroger.
The PCB has all the parts identified on it. So, build instructions generally aren't needed. Here are some tips:
1. Put the lowest components on first (e.g., resistors) and work your way up (IC sockets, capacitors, transistors, connectors).
2. Before installing the microcontroller and screen, power up the tester and verify the voltages on the IC socket and LCD connector. This is your only opportunity to make sure that you won't fry anything.
3. Once everything is working, be sure to calibrate it. Your kit may include an extra capacitor for this purpose.
The listing below has a photo of the assembled PCB without the screen that might be useful for reference:
http://www.ebay.com/itm/272165236396