Move Backup Exec V-Ray edition 2014 version 14.1 rev 1786

Hello,

I have to move an installation of Backup Exec V-Ray edition 2014 version 14.1 rev 1786 from a Windows 2008 R2 server to a Windows 2012 R2 standard, I have found some articles on Symatec website but not related to 14.1 version, for example:

https://support.symantec.com/en_US/article.TECH672...
https://support.symantec.com/en_US/article.TECH677...

What's the right and safest way to perform the migration ?
After the migration it's possible to upgrade to BEX 2015 ?
If I install directly 2015 can import old catalog, or can restore files from old catalog ?

Regards.