I just got the plugin setup and followed the directions for using S3 downloads.
My customer had download problems. I generated a link with the admin functions and copied the download_manager_debug file.
[01/11/2012 5:46 PM] - Status : AS3TP URI request = as3tp://digidls.s3.amazonaws.com/manauls/Massey-Ferguson-MF255-MF265-MF270-MF275-MF290.zip
[01/11/2012 5:46 PM] - Status : Dispatching AS3TP URL = http://digidls.s3.amazonaws.com/manauls/Massey-Ferguson-MF255-MF265-MF270-MF275-MF290.zip?AWSAccessKeyId=AKIAJWT4U74LSAPJK2CQ&Expires=1326304299&Signature=UyDF%2BgzkHH0uIy%2FLU%2FFQJrnUlhc%3D
Where is the problem at? Thank you!