Hi Aurel,
thank you for reaching out to me. Unfortunately, I no longer have AllegroBASIC available for download as I have removed it from the internet. I apologize for any inconvenience this may cause you.
However, I am currently working on a new project called RetroBASIC, which will have a similar scope as AllegroBASIC. Although it is not yet available, I will keep you updated on its progress and let you know when it is ready for download.