Instructions
Open the converter. Click the "Configure" button and select "Browse To No$GNA.Ini." Navigate to your No$GBA directory using the navigation tree to the left, and press "Save Config." The converter can now edit the configuration file for No$GBA.
Click the save file you want to convert from the Original .SAV File menu. Type a name for the save file in the dialog box and then press "Convert File." This will convert the file to a format compatible with VisualBoyAdvance.
Click the Windows orb and "Computer." Navigate to your No$GBA directory and drag the new save game file into another directory. Right-click the file and rename it so that it has the exact same name as the original.