First your agent has to be registered to place bids on the HUD site. Second the home must be eligible for the GNND program. If this is the case then check to make sure the bid timeframe hasn't already expired. For example if the bidding period for the GNND expired Friday the home will still show that it is available but it really isn't until the HUD offices re open after the holidays. If all else fails the agent needs to contact the property manager to find out what they need to do. When purchasing a HUD make sure your agent is aware of the process! This is extremely important for your home buying process!