ATA-2,3,4,5,6 Interface refers to various levels of what is also known as PATA or IDE, all it's saying really is that it is backward compatible through all IDE (PATA) modes, (levels) there were only 6 - this article helps explain
http://en.kioskea.net/contents/pc/ide-ata.php3 as does Wikipedia's entry on
Parallel ATA
IDE is the more common term used for PATA, hope it helps
The first two on the link had firewire aka "1394" all the rest appear to be USB 2.0