Hi Timon,
Begin by downloading the Professional edition's package from out site. First log in to AkeebaBackup.com, then go to the
Admin Tools download page. Click on the latest release (it's the one listed at the top, at the time of this writing it's 2.2.a3). On the new page, click on "Admin Tools Professional". This downloads a ZIP file.
Go to your site's back-end, Extensions, Install/Uninstall (Joomla! 1.5) or Manage Extensions (Joomla! 1.7 and later). Click on Browse, select the ZIP file you downloaded, then click on "Upload and Install". Now, do this again. When upgrading from Core to Pro you have to do it twice, otherwise Joomla! does not install all necessary files.
That's all! You are now ready to
start using the Professional release.
Nicholas K. Dionysopoulos
Lead Developer and Director
🇬🇷Greek: native 🇬🇧English: excellent 🇫🇷French: basic • 🕐 My time zone is Europe / Athens
Please keep in mind my timezone and cultural differences when reading my replies. Thank you!