I installed XAMPP on a Mac, no problems, installed joomla 1.5.9, no problems, then I tried to install modules or templates or whatever from the Joomla Administrator but i always get the same message: "There was an error uploading this file to the server - Unable to find install package". Folders permissions are ok, restarted XAMPP, FTP support for Joomla is disabled, file size upload is ok and extensions are mostly a few Kb, web services for Joomla are on, well, EVERYTHING that I could find on forums everywhere I did. Any idea? I am SO frustrated, 3 hours now so far.
Thanks in advance to everybody.