The latest release 4.8.1.0 is available from the links below
This release contains
v3.0.16.420 PC-EFTPOS Client
v4.2.7.22 EFT Server
v3.31.51 CsdEft.ocx (activeX file)

For NEW installs
Click on the following link to download – PC-EFTPOS setup.exe

For existing installs / upgrades
Click on the following link to download – NoConfig_PC-EFTPOSSetup.exe

Release Notes:
EFT Client Release Notes: click here
EFT Server Release Notes: click here