Hacking Help with save import

[MacroKrome]

Hi,
so I am trying to import this save:
http://wiisave.com/index.php?dlid=3357

into my wii.

I already have a save of the game on my wii (and checked that it is also PAL), and I tried importing it with several tools:

savegame installer 2.0 - returned: "error ret=-1"
savegame manager MOD - didn't display the save, so i could not install it.
savegame manager GX (r127) - returned "unable to setUID" when I tried installing the save.

I am using system menu 4.2, I have hbc 1.0.10, and IOS58.
I also have installed USB loader and I really don't want to break it by accident.

I will be grateful for any help

 

[MacroKrome]

Please, does anyone have an idea on how to do this, or has anyone done this before with similar specs and can tell me the differences between his or mine? Any help will be great!

 

[MacroKrome]

Okay, so I have narrowed down the problem in SGMGX to this:
The manager doesn't detect all my save files.
Strangely enough, people have gotten around this by using ios58, but this did not work for me.
Any ideas?
Also, I also tried working with an ntsc rom and save and it didn't work any better.

edit:
I tried reinstalling cios249 and cios250 by following this guide:
https://sites.google.com/site/completesg/backup-launchers/installation
It didn't help. Caused a few bugs that I had to fix. Still looking for an answer.