When searching for specific things.... (help)

So how come when I type things in the search box at the top of the site nothing of mine will show up?

For example I have a few Tokyo Mew Mew dougas in my gallery, but when I type "Tokyo Mew Mew" at the top and press search they won't show up. I've noticed this about other galleries as well.

Is there a way to tag things so they will show up or is it showing up after a search only available to people who help donate to the site?

Also... can anyone help me change my profile picture/icon? Lol I have no idea how to do this.

I believe the search option has been in trouble for a while. You can try google - you should show up.
o change your icon - I believe ...
go to My Account- Site graphics-page to edit would be Gallery Listing... download your new picture