You can download it here (need an Adobe account (free) and have to “agree” to the EULA).
Three separate downloads are usually required:
– for the server components
– for the Workbench IDE
– for (Form) Designer
Once applied, your ‘About’ page should show a version number of 18.104.22.168 Please make sure that you
– use LCM to build new EAR files
– undeploy the current EAR files
– deploy the newly-built EAR files
– deploy LiveCycle solution components (DSCs)
To download a trial version of LiveCycle, go here.
Post-SP1 install versions numbers for:
– Workbench : 22.214.171.124.20100511.1.236086
– Designer : 126.96.36.199.20100329.2.659576