I'm in much the same situation as nfn, having just signed up to Twitter. It's all so complicated, even to find my own Home Page - if that's what it's called. At one point I clicked to see my Settings and found a 'Browse' link, so I clicked to Browse and was alarmed to find it gave me access to information on my own computer. There was a gold security padlock symbol at the top of the screen which I take it meant it was secure, but I didn't like it and don't know why that Browse option was there. Perhaps it was something to do with my website. I'm not at all sure that I shall stay with Twitter.