PortServer TS Driver install on AIX server

Hello,

I've been trying to install drivers for my PortServer TS on an AIX machine (IBM RS/6000) with absolutely no luck.  Digi Support provided me with the following .bin file to install, but when I burn this file to a disk, the AIX server is unable to find any valid files on the disk.

The link for the driver is:
http://ftp1.digi.com/support/driver/40001927_E.bin 

Has anybody else had any luck installing this driver on an AIX box, or is anybody able to point me in the right direction here?

Thanks!

Jay