60% crash is quite easy to track, at least it always was in my install - own stupidity
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(dont want to offense you marco
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no serious - if the game crashes at 60%, you are either missing an entry in the air.ini or have the entry but miss the files (eg the plane that goes along with it);
have you modified your TFM install in any way? I mean did you add your own aircraft, maps, objects?
if so, you will have to add the content of any new TFM package manually, which is easily doable if you know what you are doing; but simply copying over the STD folder with the ini and properties files will surely crash your game then;
if you have not modified the stock TFM install, no planes, maps, objects added, it should be ok to simply copy over the STD folder into your install and add the package files in the correct file structure;
load up crashes (5, 60, 70%) have always been directly related to a wrong file structure, missing ini entries or missing files in my case;
5 and 60 are easy to trace, a 70% can give you nightmares far beyond a jealous girlfriend if you like your IL2 install
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oh and a little bit contrary to what marcost said, you can also revert from a direct install TFM - ask me, I have done it quite often by now
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1) BACK UP YOUR ENTIRE STD folder (from the running install you want to add stuff to)
2) add the stuff you want to add (keeping track of what you add and how it is called; for example, I label all aircraft with an AIR_ before the actual file name, that way all aircraft are easily identifyable - within the correct mod loading order of course)
3) if your game crashes, try to resolve why, if you cannot, simply delete the last added mods and revert back to the backed up working STD folder
hope this helps so far
best regards
phil