cant get park lights to work on my infiniti g35.

If all parking lights are not working, then it is likely something other than bulb failure. Testing will be required to find out what in the circuit is failing. You've done all that anyone without technical knowledge or equipment can reasonably do -- so that's good. But circuit testing with proper equipment and reference material is required.

Fuses 'seem' to be ok? .. The owners manual contains the location and function for the fuses .. See fuses in the index - back pages of book .. Suspect parking light fuse is now open (blown) .. (Quite possibly happened when the bulb was replaced)