forget everything he explained.
That's old, and dangerous.
- if you are on Windows, you can update to 4.3 by using modmii (don't use waninkoko's updater!), select "I want to softmod" and follow the directions and questions to generate a guide to update your wii. But it's NOT NEEDED!
- you don't really need to format drives to WBFS format, it's not required anymore and is even deprecated. Now FAT32 is recommended.
- WBFS manager 3.0 has bad habit to corrupt already present games on your HDD without you knowing it. they can still launch and play fine, until the game try to access corrupted files.
- Use WiiBackupManager instead. (again, if you are on windows).
- Waninkoko IOS249 ... doesn't mean anything ! IOS249 is a slot location where you can install things into it. Not mentioning what's installed inside is not useful.
What you need to install is not one of the waninkoko IOS (which are old), but a d2x IOS.
in the slot 249, you need to install d2x version 8, based on official IOS 56.
- You can launch discs without updating to 4.3 !
- You can either use an USBLoader (USBLoaderGX let you launch game discs, click on the disc icon at the top right)
- if it still doesn't work, you can bypass the update prompt by using another launcher (
WiiLauncher, or
GeckoOS for example)
- There is also another option (even if I don't like it myself, a lot of users are doing it) : install Priiloader and enable "don't warn for update from disc".
Don't do anything if you don't understand what you have to do!
Please, ask first and we will explain step by step.
If everything is already working fine, don't change anything.
If your issue is only with this particular game, just use GeckoOS or WiiLauncher, and that's all

No modification required to your current setup.