Installing ToB will raise the Xp cap to 8,000,000. It will also allow you to gain special abilities when any of your characters exceed 3,000,000 Xp. Your party will not lose any items.
- Copy and backup your save folders
- Uninstall SoA
- Reinstall Soa
- Install ToB
- Download and install the ToB patch
- Check whether your save folders are okay, if not, use your backup