Is this event available at TRU, or is it only via wi-fi? Because I've been trying to get onto wi-fi all day today, with no luck (apparently my wireless router in my house isn't compatible with the Nintendo DS, and a Nintendo Wi-Fi USB Connector is no good with a PC that doesn't connect with the internet or a Macbook with internet access), and there's a TRU, like, two minutes away from my house, so if going there will help, that'd be awesome to know.
Also, probably a stupid question, but do you have to have accomplished all of the events leading up to the Darkrai event (have the National Dex, etc.), or can you just do it whenever? Because I've only gotten far enough in Pt to get the Mystery Gift, and it worked for the Secret Key, so I assume it'll work, but I just want to be sure.