Thanks for your answer. Unfortunatly that was what I was already doing. After selecting version 4.3 (first version, the hotfix generates an error) and clicking on "Sitefinity 4.3 Installation Package"
it still redirects me to version 4.4 instead of 4.3 which I selected.
Just tried to only download the Project Manager for 4.3 but clicking on the link also returns a 404 error.