Geopak Input files not visible for Loading???

I am having an issue seeing the input files (.inp) generated by Geopak.  Specifically I am trying to load a clients input file that was provided to me, however, I am finding that I cannot see the backup input files generated by Geopak or the ones I wish to load.  I assume this is either a simple setting or I am missing something.  I am wondering if this is a configuration varaible issue.....pointing to the wrong location. 

The process I took to load the input file was:       COGO >> File >> Input FIle Utility

I placed the input files in the project dgn directory, which was the .gpk file location and creation point of generated input files.

Any ideas would be appreciated,  James