If you want to post on the Forum or the Blog, you need to create a new account. Your CNET ID is not valid for these. You can use the same one but you still need to register as a new user. To do this on the forum, go to the ‘Register‘ Link on the top-center of the header and follow the directions. To post on the blog click on the ‘Register‘ link on the right side of the main blog.

Sorry for the confusion.