lol dude...where is your landing page? do you expect people to get to some random blog, click a thousand times till they get to the sign up form...and sign up? get a _landingpage_ , not some home-page of a wordpress install. also your traffic seems to be really low for CU...expect to need at least 20-30 uniques per conversion, on some days it seems to be as high as 100+:1
you might get 5k visits a day but due to your aweful site structure, 4990 of them leave your site before they even get to the signup form.