Yes, you need to create an account to Post your Ads on Beonia site. You need to select type of user and provide your valid email address.
Premium listing places your Ad at the top of the search results. When someone searches for your type of Ad it will appear on the top of search results list, in addition to its normal position. Your Premium listing position will cycle among all other Premium Ads for so many days as you bought. After Premium Listing period is over you can buy this placement again at your Dashboard "My Private /Company Ads" while your Ad is Active.