For those whose offers are not getting credited after doing the offers as clearly as they tell you to, I may have a solution. My offers haven't been crediting lately but, with the help of wilmomannn i was able to pinpoint the problem. I was using Internet Explorer 6, I even tried using Mozila Firefox and the offers weren't crediting. I downloaded Internet Explorer 8 and offers have been crediting like crazy. Got 4 points in 15mins out of like 8 offers. Pretty good I'd say.
Another thing others may not know or be using is the site: 10minutemail.com It gives you temporary emails to use on some of the offers. I wouldn't suggest using this site all the time because, some of the offers require a unique not a temporary email.
Hope this helps with crediting your offers.