I'm not sure I follow you. If you have brackets on one side of the radiator for the fan, that is all you should have... just attach the fan there.
I have a FAL on a stock radiator and it didn't fit quite right either. The top holes lined up fine but the bottom ones I had to drill holes up a little higher and enlarge the cut out for the drain pug opening.... so long story short... a lot of times the FAL's don't fit quite right.
As far as your a/c fan is concerned, isn't your condensor seperate from the radiator and doesn;t the a/c fan attach to the condensor not the radiator.... at least that's how it is for my civic.