Shoot I didn't know the game exported without the layers DX, thanks for letting me know I reuploaded the game file and hopefully it should work!
You need another item in order to solve the computer puzzle, you can get it by completing the minigame where the shutters are; by out running Nem using Aldan's ability, you can obtain a small key to the Nurse's office and get a USB to use it on the computers to solve the code!
But if you already have the item, here's a hint; The big red X in the room actually represents a multiplication sign
I'm planning to make a walkthrough soon, so hopefully I can get it out by then :))