Are EDT software driver/sdk packages available online?

Device driver/software updates are available on this web site in the Download Hub. The updates are identical to what is currently being shipped on CD-ROM disks with the boards. Be sure to read the associated README file when you download the software for instructions on extracting and installing. And always remove any previous versions of the software before installing a new one, using the appropriate utility (Add/Remove on Windows, uninstall.sh on Linux).