Greg - 10/10/2008 10:04 AM 
All comments, except survey comments, must be accepted or approved before they are shown. In the Settings section of Edit Profile, you can change whether or not to accept comments automatically from members on your buddy list. In the All Comments page (accessible from the member home page OR the quick links drop menu in the top right), you can view all comments (for your profile, blog, photos, etc.) and delete them if you want. Thanks!