The QuarkXPress 6.5 is not available for purchasing, but you can upgrade to the latest one which is QuarkXPress 2017 for 399 Euro. This is the price for versions 3 - 2005. You have to visit the official website and mark that option then follow the instructions to upgrade to the latest version.
You also need to meet the following requirements in terms of Mac OSX versions:
User question: "Running QXP 19 on Mac 12.6 Monterey."
Answer: Yes, the question is related to the software program QuarkXPress and its compatibility with Mac 12.6 Monterey operating system.
The QuarkXPress 6.5 is not available for purchasing, but you can upgrade to the latest one which is QuarkXPress 2017 for 399 Euro. This is the price for versions 3 - 2005. You have to visit the official website and mark that option then follow the instructions to upgrade to the latest version.
You also need to meet the following requirements in terms of Mac OSX versions: