There are a couple ways. If you have Outlook Express (OE) check in the Tools/Options/General tab. At the bottom is an option to make OE your default Mail app and your default News app. As long as it is set to be the default news app just click the link for the Stardock Newsgroups on the support page here: https://www.stardock.com/support.asp
It should automatically launch OE and have that news server set up. Then you can look through the list of groups for the stardock.objectdock group. Subscribe to it or click go to and there you go. Once there just make sure you click on the buttons "New Post" and "Reply Group" rather than just reply (reply will email the person you are replying to, not to the newsgroup so everyone can see it). Any other questions just holler. (I post by the name Peter over there BTW)