Hi eLowar
Here is the Sierra AGI deliplayer plugin again as the link for it above no longer exists for those that need it:
http://wt.exotica.org.uk/files/players/EP_SierraAGI.lha
Install info:-
... Your going to need a de-archiver that can unpack lha files such as 7-zip. Once you have unpacked the plugin, you then need to copy Sierra AGI and Sierra AGI.AMP to C:\Program Files\DeliPlayer2\AmigaPlayers folder.