Brikshelf is one of the most stupid and un-user-friendly download sites I've ever encountered. It's like trying to wank with sandpaper or screwing J+B's mom, in that it's very unsatisfying, is a right pain in the dick and may lead to combustion.
Photobucket or GTFO. Fluckr is for wanna be posers toss wank stains.
I use Brickshelf it's actually pretty simple to use, but it's VERY limited. You have to size all the photo's before hand & labling has some whack guildlines. There's no sort or comments section, only a visitor's counter. But if all you need it a basic image storage for links I recommend that, but if you want more you should go for the better places.