dream on!

OK, I am a bit 'huh?' about Dreamwidth. I can't figure out how to add people. I have found a page that lists all my Livejournal friends, but that is 350 people, many of whom haven't been heard of for years, or didn't exist in the first place, and Dreamwidth has automatically ticked them all for me to add which clearly I don't want to. Do I have to spend all morning unticking? Three people are in green, which seems to mean they have added me on Dreamwidth, but they are not ticked for me to add, so how do I reciprocate, other than spending all morning unticking the other 347 and ticking those three?
And where are my icons? It said I could upload icons, but none of them are stored on this computer. Do I have to make new ones? I somehow feel that I am making this harder than it should be, but I'm not terribly impressed so far.