I am so sorry for your loss.  This may be something you need to do in person at the Probate Court in the county in which he resided at the time of his death.  If you are a beneficiary then you should receive notice from the executor of his or her intention to offer the Will in to probate.  If you know who the executor is then maybe you should seek legal help to write a letter on a flat fee basis asking the status of the estate.  Good luck.