Welcome to Smogon! Take a moment to read the Introduction to Smogon for a run-down on everything Smogon, and make sure you take some time to read the global rules.
Hey, Scramble challanges are things people do for fun, maybe you could check out my (completed) Emerald one, you know, for fun?
Or give my HeartGold one a read? (Currently on long-term hiatus, because of the whole Onix v Jasmine thing.)
And of course, you can wait for the first installment of my Black Scramble.