3-way switch w/2 hot wires??

[Fatfingers]

My home which was built in 1964 I have a 3-way circuit that I had previously changed out the switches and it has not worked correctly since then, I removed all the wiring from both switches and had several diagram's to work from and can't get it to work. I have in each switch box 1 black, 1 green, 1 yellow wire.(my color codes for my house are horribly wrong for some reason)both black wires are hot. Please somebody help me get this thing working. I worked when I bought the house 3 years ago and now im selling and need to get it to work again. Thanks in advance.
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moderator

moved as posted in wrong forum

 

[plugwash]

how do you know the black wires are hot?

and do you have any idea what the other wires do?

 

[cholbach]

the first thing that I would check is the switch that you removed, if you still have it. Look at the metal on the old switch. Some have a small metal tab that you can remove with a pair of pliers which allows the current to stop at the switch. Compare it to the new one and see if that is the problem.