Hi,
LUA 2.3.2 is not available on Symantec Fileconnect.
The Latest Version of LUA 2.3.2 is available with Symantec Technical Support.
You can log a case on web portal to receive tool.
How to create a new case in MySupport http://www.symantec.com/docs/TECH58873
Phone numbers to contact Tech Support:-
Regional Support Telephone Numbers:
Australia: 1300 365510 (+61 2 8220 7111 from outside Australia)
United Kingdom: +44 (0) 870 606 6000