I can, but I also have to help Caruto (He's still never done a Capture yet).
Let me explain to you the basic procedure for the Arceus event. First, activate the event and go to the Sinjoh Ruins. The hiker guy will take you to this cabin. Talk to Cynhthia there and then she leaves and goes to the ruins. Deposit all your pokemon except Arceus, then go to the ruins and save 1 step in front of the ruins entrance. Then just hit your seed like usual and advance to your target frame (The Dialga/Palkia/Giratina are Method 1, not Method K, because they're gift pokemon), then go inside. Cynthia takes you through this whole talk and then you can pick your pokemon. Check its IVs/Shinyness and if you didn't hit your frame, then Cynthia prob. advanced the frame when she was talking to you, so just rehit your seed and advance accordingly. For example, if my target was 20 and I hit 25, I would advance to 15 next time.