Uninstall iFuntastic Support
After unshackling (or when you explicitly install iFuntastic Support,) iFuntastic installs some files on the iPhone, which it needs for many of its advanced features. During the course of customizations, iFuntastic also makes backups of original files (they show up as _org_name in the same folder as the backed up file.) Depending on the operation, iFuntastic heavily modifies files on the iPhone. The home screen is a good example: it may use up to 68(!) new applications to do its job and may change the application names, wallpaper and display order.

If unshackling failed, or you have other problems with iFuntastic, or if you simply want minimal intrusion and are not using some of the advanced features that iFuntastic offers, then you can remove almost all of the files that iFuntastic added, as well as revert to the original files.
'Almost all', because some files can only be restored by doing a 'Restore' of the iPhone.

Click on 'Uninstall iFun Support' to do so...
The File Manager will still work, and you can view, add, delete and edit files.