1) Yes. Using HUDs, you can change the default "Picked Up an Item" to display whatever you want.
2) Yes. There is a sound zone where you can trigger sound files (I believe it's only WAV and OGG file formats, though)
3) Yes. If you put it into your Audiobank folder (when you purchase it) you can use them as background music, music from a trigger, or menu music.
Hope that helps. If you purchase FPSC and need any sort of help, feel free to contact me. It's always good to see someone who is actually eager to actually learn the program, rather than trying it once and then giving up.
Gunn3r Games
