TuneTown,
Welcome to the Forum. I can't recall a specific issue with "step-by-step" instructions, but maybe someone else will.
I've done two of these pond renovations myself now (the last one just completed) and would be happy to offer any lessons learned. Maybe you could post a little more info on the pond size, the equipment you have available to work with, and your overall plan for the renovation.
One of the most difficult problems in these projects is associated with the "muck", the collection of silt, plant, and other wastes in the bottom of the old pond. Depending on your equipment situation, age of the pond, and the surrounding area, several options exist for dealing with this problem.
Another problem that I encountered, that you may not have, deals with the integrity of the dam, i.e. years of neglect and abuse by animals, trees, weather events, and etc. necessitated considerable dam repair in one of my cases.
If either of these topics are of interest, I would be most happy to elaborate.
One word of caution, renovating an old pond can/will put the equipment operator in some dangerous situations. Safety first is the best advise I can give you and things can get away from you in a hurry is the lesson learned I would point out foremost. Enjoy the project, because it can be a most rewarding undertaking.