Are you required to create an account first?Can the PS3 download them directly?
It is. If you want some good textures already made, you can go here: http://stardustsdiary.blog.fc2.com/blog-entry-460.htmlThe ones that are blank are NSFW, just to warn you.
Costumes 4-7 for Neptune for example. Looking at the textures and the preview links it has, it looks like a Nobody skin from Kingdom Hearts but it's labelled in the translation as "Sword Art Online".
You are not allowed to request a sticky.