You have right. It was a serious typo. All files are AES-256 encrypted.
Seems like your first language is german...
Anyways: How are the keys for the files generated?
Edit:
Example link:
VLC 2.0.4
"Filesize: 21.9 MB (min. fee per download: $0.0213)"
I set the fee to 1 USD...
http://www.coinuploads.com/downloads/5c74eaee42dbfd9fd9700c53c9ee275aHashes of the original file:
Adler32: 4C253181
CRC32: A3F07BE1
MD5: E03F2F24BCA457A35E1E26732AFE4A2F
SHA-1: 0A335D3B790FD4AE3371E73806B2CDF59FB384C6
SHA-256: EC2A1B497894D6B696953DD868B2894B6DEC2AAACCD259A8D80B167A36B9CB0C