I did this on a 5.2.3 system without major problems.
On the new system you will have to install the aladin sentinel hasp driver for the security key to work.
create the aloha and the edcsvr (might be different check the users on the running system) users and set the passwords the same as the terminals
After copying the aloha directory, share it and make it writable
you will have to register the dll's and the services. In either the bin or the utils directory there should be a .bat file (usually named register.bat) that looks something like this
C:\WINNT\System32\Regsvr32.exe C:\WINNT\System32\ATL.DLL /s
C:\Aloha\bin\ALOHASEC.EXE /regserverquiet
C:\WINNT\System32\Regsvr32.exe C:\Aloha\bin\ASecPS.DLL /s
C:\WINNT\System32\Regsvr32.exe C:\Aloha\bin\ARSec.DLL /s
C:\WINNT\System32\Regsvr32.exe C:\Aloha\bin\ARSecPS.DLL /s
C:\Aloha\bin\AlohaMgr.EXE /regserverquiet
C:\WINNT\System32\Regsvr32.exe C:\Aloha\bin\AMgrPS.DLL /s
C:\WINNT\System32\Regsvr32.exe C:\Aloha\bin\Ctl4x.DLL /s
C:\WINNT\System32\Regsvr32.exe C:\Aloha\bin\EdcSec.DLL /s
C:\WINNT\System32\Regsvr32.exe C:\Aloha\bin\EdtPunch.DLL /s
C:\WINNT\System32\Regsvr32.exe C:\Aloha\bin\Mnt4x.DLL /s
C:\WINNT\System32\Regsvr32.exe C:\Aloha\bin\UserTool.DLL /s
C:\WINNT\System32\Regsvr32.exe C:\Aloha\bin\AlohaLab.DLL /s
C:\WINNT\System32\Regsvr32.exe C:\Aloha\bin\InterPrt.DLL /s
C:\WINNT\System32\Regsvr32.exe C:\Aloha\bin\Crystl32.OCX /s
C:\Aloha\bin\Ctlsvr.EXE /Service /s /LOCALACCOUNT /iberdir C:\Aloha /robust
C:\WINNT\System32\Regsvr32.exe C:\Aloha\bin\CtlsvrPS.DLL /s
C:\Aloha\bin\Edcsvr.EXE /Service /s /LOCALACCOUNT /iberdir C:\Aloha
C:\WINNT\System32\Regsvr32.exe C:\Aloha\bin\EdcsvrPS.DLL /s
C:\WINNT\System32\Regsvr32.exe C:\Aloha\bin\CalcEdit.OCX /s
C:\WINNT\System32\Regsvr32.exe C:\Aloha\bin\Qwerty.OCX /s
Obviously you would need to modify the path if its not c:\aloha.
After you run the script go to the services under administrative tools. find ctlsvr and edcsvr under the log on tab make them run under aloha and edcsvr users respectively.
If you have problems with the registering of the dll's or the services you can check this thread
I did this a while ago so I don't know if I am forgetting something
Good luck