Install Aali's OpenGL driver.
Open the ff7_opengl.cfg file using notepad.
Go to the line that says "mod_path =" and set it to "mod_path = avalanche".
Download the image and rename it to buster_00 and place it in mods\avalanche\menu.
32-bit: C:\Program Files\Square Soft, Inc.\Final Fantasy VII\mods\avalanche\menu
64-bit: C:\Program Files (x86)\Square Soft, Inc.\Final Fantasy VII\mods\avalanche\menu