SamieltheMDS - You upload it somewhere private-ish like a DropBox account or Sendspace or whatever hosting sites you prefer, and then you simply PM the link to me (preferably along with the title and a brief description/summary of your game) whenever you're ready to submit. When the last of the projects are in, I compile everything and pass it out to each of the judges myself as I go over some details with them.
Chaos_Zexion - You may start in your own timezone, we trust ya on that. It's usually easy enough to check where a contestant is timezone wise anyways, although it does help letting us know in advance instead of looking it up.