Alcatel Unleashed

I think you have to check the compatibility of 4760 with respect to OXE version.
You could use 8770 server to work with the latest version of OXE

The license file is getting validated during 8770 install. So you should have a valid license to proceed further. I think there is some modification happened in the license file causes this issue

Are you getting some password policy related errors?
Check the root cn=config-> password policy and modify the relevant attribute to solve the issue.
While log in to the 8770\bin\DirManag.exe enable the check box Config Suffix to see the root cn=config

You can import only the ldif files. Change the excel list to ldif and import

I think there is no need to migrate OXE for the migration of 4760 from 4.1 to 5.1.What is the OXE delivery information?

There are two types of Audit information in 4760 audit application from R5.0
1) OXE audit
2) 4760 Audit

OXE Audit contains

1) System information
Commands executed on the OXE system(Ex: pwd, ls etc).
2) MAO information
Operations performed in MAO, ie Mgr(Ex: Object Class(Ex: subscriber) create ...

Restart the Nmc Loader service

1) Delete the user from company directory

2) Create a user with sane same name. Before validating the user creation take the User Id of the user. This user id will be automatically filled, once you give the first name and last name of the user and click on any place in the table.

3) Using filter ...

You can increase the purge limit by changing the value of attribute purge limit for incidents available in the following place
Open the directory application and go the path nmc-><Server Name> -> Servers -> <Server Name> -> AlarmServer

Two ways of alarm backup

1) You can take 4760 server backup ...

Your question is not clear. What is the issue? Let us know the step by step procedure you did for configuration...