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.
I've talked it over with a few of the mods and you have been unbanned. If your sibling uses the same IP (computer) as you, it is best to say so in your signature or someone else on your profile.
You have an alternate account, Pwnage. Use that account for Pokemon Lab. This account will most likely be banned soon as alternate accounts are not allowed on either Pokemon Lab or the forums.