Wow. You have a boatload of work to do on this one. I have a fair amount of experience restoring old photos and I woud expect to spend several hours fixing this one. It will involve cloning, healing, color correcton, levels adjustment and some good luck.
How familiar are you with Photoshops' tools ? My first suggestion would be to scan it again and save it as a .tiff. You`ll have more info to work with.
Yes, this is Deceased brother of my girl.... So her mom would like to have his picture in frame. And I would like to make this picture to look the best. So I would like to ask u if it is not too much trouble for you... When u will have some time, can u play around with this one?