If you cannot figure out how to handle the probate process, consider hiring a lawyer to assist you. You can also consider investing in a self-help book; I can't vouch for any for your state.

Generally speaking you notify creditors and heirs of the estate, wait for claims to come in, propose a distribution, and get the court's authorization for the distribution after notice to the various interested parties (unless they sign waivers). If you need to sell assets in advance of the final distribution, you generally must get the court's permission.