You can use any FREESCO version kernel in any version of FREESCO with the exception of anything made for 033. But the newer the FREESCO kernel means it has more patches and or more capabilities included by default. So I would recommend 037 kernels for 036 and less systems even over the kernels made for a specific version of FREESCO.
Which if anyone needs specific options in a kernel all they have to do is ask and give a description of what they need and I will make one.
If you are afraid that you might make a mistake. The chances are high that you will never learn anything.