Heres the Translated readme, im sure this ones better.
Instructions
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1. Rip your favorite game using cdrwin(as a raw 2352 byte sector image), put
   both image and cue in the same directory as girigiri saturn.
   OR
1. Run glaunch.exe with a full pathname(e.g. If you have all the files in
   c:\girigiri, then run the program as c:\girigiri\glaunch). Setup everything
   how you want it, click the big image, then when Girigiri starts, close the
   program(you only have to launch glaunch once). You may also want to adjust
   the AREA option in base.ini to the region of the cd that's in your
   cdrom(see step 3).
                 
   Now just run gsaturn with the "-DISK" switch(e.g. gsaturn -DISK). Make sure
   your saturn game is in your first cdrom(if you have cdrwin handy, just
   check to see which one is first in the list).
   This mode does work(I got it working in Win98 using VirtualPC and on my
   Win2k setup), but it may not(I wasn't able to get it running properly in
   my WinXP setup). Just make sure your aspi drivers are up to date, etc. Skip
   instructions 2-7
2. run gentoc on the cue file(e.g. gentoc bloop.cue), this should generate
   a file called toc.bin.
3. Now edit base.ini, and change DISK1TOC so it points to the toc.bin file
   you just created(you shouldn't need to change this as by default, it's
   toc.bin). And change DISK1IMG so it points to game's image(e.g. bloop.bin).
   Lastly adjust AREA to the region of the game:
   1 = Japan
   2 = Taiwan/Philipines
   4 = US/C
   5 = Brazil
   12 = Europe
   etc.
4. Now run glaunch.exe with the full pathname. (e.g. If you have all the files
   in c:\girigiri, then run the program as c:\girigiri\glaunch)
5. In the Launcher, adjust the settings how you want them(it should all be
   pretty straight-forward), then click on the huge image
   ("Click here when you are finished").
6. Girigiri Saturn should basically start up, and go through all that bios
   spiel like it does on a real saturn.
7. You only have to run glaunch once. So next time(unless you want to change
   some settings), just run gsaturn with the "-i" switch(e.g. gsaturn -i)
8. If the game doesn't load, it could be an emulator issue, or perhaps a
   bug in gentoc. You could always try adding your game in games.dat and
   tweaking the settings.
9. Emulator settings, save ram and backup ram files are all located in settings.