Okay, I see. It works similarly with the eggs, but not quite. First of all, you'll have to calibrate to know where you are. This is what I do. First of all, start the game on my target date/time and attempt to hit my seed pressing keys if necessary. By now you found out how to use Egg Seed Searcher, right? Also, you should've saved right infront of daycare man. Anyways, so, once to continue and begin the game with c-gear off, you need to be as quick as possible. Press X as quickly as possible and hear a chatot's chatter once only. Now, again, as quickly as possible, get out of the menu and press A to accept the egg from daycare man. Now, fly to anywhere with pokémon with high levels, I usually fly to Victory Road, and then capture the first pokémon you find. I usually Sweet Scent. It is important you capture the first pokémon because that's the one that counts.
I'll continue in the next vm, just posting this in advance you can see I'm still here xD