Wow, thank you! I hope you do well with your shiny hunting as well.
I knew you might ask this question. :)
To get the National Dex you must see all of the Sinnoh Dex Pokemon. Not catch, but
see. Some will be tricky. You should have seen most already. One that you might not have seen is Palkia in Diamond and Dialga in Pearl. To see it go to Celestic Town and talk to that Grandma. She will show you a picture of it and it will register in your PokeDex.
If you need to find out what numbers are which Pokemon,
check out this list. It's the Sinnoh Dex, and the Pokemon you need to see. :)
You
don't need to see Manaphy though.
Shouldn't be too hard.
Return to the Lab afterwards and Rowan will give you the upgraded PokeDex and you will also receive the PokeRadar.
I haven't gotten hardly anything done since my drunk Uncle came and stayed for like 2 hours.... ugh.
I'm going to have to put the pedal to the metal if I want to get to 900 tonight.
And to beat it all I feel like I'm getting sick, which isn't out of the question since my Dad is sick and my Mom is getting sick too.