Having computer brain freeze

[kiki-do]

Hello! I have two computer questions. I tried to put my pictures in the gallery but can't find them anywhere. After I submitted, it wanted my user name and password again. Did I mess up?
Question two: How do you post a new thread on the New Posts section? I can't seem to find the "post a thread" that works. Honestly, this shouldn't be so complicated for me but it is. I scrolled all the way down and everything was just black. I don't usually have this much trouble maneuvering around a website. Thanks for any help. Sorry for being a computer pest. Kiki-do