Because it's not hosted there.
SOURCE. The editor supposedly works for Dragons Crown, Final Fantasy X/X-2, God of War Collection, the Super Robot Taisen games, and virtually any game that has a checksum (apparently.) I have attached it to this post.
This is my (very, very rough) interpretation on how to use this tool.
If you want to use it (it works for both pirated games and legit games) the instructions are:
1. If the game is a non-encrypted game, place this eboot and the folder in the ux0:/patch/titleid (where titleid = the game you want to hack)
1a. If the game is a vitamin/mai dump, place the save editor's eboot in the game's ux0:/app/titleid folder, renaming the game's original eboot to eboot.org
1b. Create a folder in ux0: named "savedata_bak"
2. Start the game
3. When the app has loaded, immediately press L+Start to create a backup of your save data. R+Select will restore the file you are currently editing. Remember this.
3a. This app features touchscreen support, so you tap the fields to input your data. There is an on-screen number input for this.
3b. Use the d-pad to cycle through your saves. This will help you compare values, as this tool supports multiple save comparisons. To enable File Comparison Mode, tap the small box in the second bigger box. Uncheck this to use the second bigger box for modifications (I assume)
4. press Square to begin the search. Your results will appear on the bottom two text boxes. Use Up or Down on the dpad to cycle through addresses.
5. When you are done modifying your values, press Circle, then press Triangle. Exit out of the app.
6. Open vitashell/moleculeshell and rename the modified eboot to eboot.mod, and the game's original eboot back to eboot.bin.
7. Start the game. See if it will load your save, and if the modified addresses were applied.