I'm trying to learn from GTA SA Map Editor, I've designed an interior but unable to make it appear in Sean Johnson's Mapping Server. I have the files, but i'm stuck at copying the code to the filterscript folder. I've designed a Chinese restaurant.

Screens:

So what should I do next? How to copy the code and paste it in filterscript? Provide with screens please.

ALSO: I wanna start designing in INTERIORS, anybody knows how to get into an interior to start mapping inside? And how should I launch it on the server?