This is the gray area. Owning the Codebreaker V11 ISO is legally questionable unless you own the original physical disc (copyright law typically allows for a "backup copy"). Distributing the ISO is copyright infringement, as the cheat engine software is proprietary.
Disclaimer: Downloading copyrighted ISO files you do not own is piracy. The following methods assume you have dumped your own physical Codebreaker V11 disc to ISO format or are using the software strictly for backup purposes. Ps2 Codebreaker V11 Iso