Save file not reading?

All I've been playing fire pro returns for PS2 via Nether emulator. I got this awesome .PS2 file with a ton of updated wrestlers that I can't seem to get the emulator to read. Any ideas? Where would this file go for the emulator to read it as a memory card? When I direct the emulator to the file instead of the mc1 file it reads as no memory card inserted.

I'm lost here! Lol, probably an easy fix I'm hoping? Thanks