So i installed wordpress but i don't see it when i point to my domain example.com,it only shows when i'm pointing to primarydomain.com/example,what am i missing?
That means you installed wordpress in a folder names example. You need to either re-install wordpress into the root of your domain or adjust your current install to become the homepage. See helpinghost.com/helpdesk/Knowledgebase/Article/View/209/43/make-wordpress-your-homepage for instructions
Yeah, HelpingHost nailed it. If you used fantastico or some other auto-installer, it will ask you which directory you'd like to setup Wordpress in. Leave it blank, or naviagte to your root folder.