Can g95 be used as a 64 bit compiler

I am trying to compile some physics code in 64 bit mode (on a dual 2.7 GHz G5). I have purchased the absoft 9.2 Pro compiler, but it fails the numerical tests for the code I am using (abinit) in 32 bit mode. Much to my surprise fink's g95 compiles the code fine (in 32 bit mode), but the fink installation seems not to work in 64 bit mode (32 bit libraries only). Does anyone know if g95 will work with 64 bits? I have tried Apples gfortran and while it does claim to work in 64 bit mode, it fails with an internal compiler error on the source code (the version seems to be older than the fink g95).

Two questions:

1. Can I get g95 to compile in 64 bit mode somehow (download, build from source etc.)?

2. I understand from reading (old?) comments on hpc.sourceforge.net that there are two version of fortran 95 under the gnu project -- what is the true story here (after all g95 (www.g95.org) works and gfortran (Apple) doesn't on my source code).

Thanks for any help.