In RNG Reporter, you go to Time Finder. There, the method you use is Method 5. Put 10 in the Max Frames Box and get your Min/Max delays to 1000/5000. Then, at the right, insert your DS MAC Address. How to find that, is in the first post of the 5th gen RNG abuse thread. Now fill in the IV's you want to have and then you hit Generate. :)
Pick a spread you like and click with the right mouse button on the Seed and click on Copy Seed to Clipboard. Then you close this Timer Finder, which'll bring you back at the RNG Reporter 9 main screen. Again, pick Method 5, and hit Ctrl + V (Paste) at the Seed (Hex) box. Then you hit Generate. Within the 10 spread you see, you'll find the spread you've chosen. From there, you go to 'Seed to Time'. Just leave everything as it is and hit the upper Generate. Now there are dates and times on which that spread will be made. Pick one, and hit the next Generate button.