Jealousy...and concerns

I am enjoying what others have posted on the Participants page. I'm a bit jealous when I see all of these pictures, links, chats, shelfaris and what not on the blogs. Will mine ever be so attractive and fancy? Are staff and the general public able to do such work using the staff computers and public computers? If I bring my digital camera in, will I be able to upload pictures from it onto my accounts?

I've also noticed that some blogs will autofill with my or another's account info when a comment is being posted. Is there a way to fix this? I might have forgotten to uncheck a "remember me on this computer" box when I did an log in long ago...I noticed that a post using my name (that I did not submit) appeared on the Participants page recently.