Please consider moving this question as-is (no need to recreate) to the proper forum for maximum visibility.  Questions written to the users' own "Discussions" space don't get the same amount of attention and can go unanswered for a long time.

You can do so by selecting "Move" under ACTIONS along the upper-right.  Then search for and select: "NetWorker Support Forum".

If you want to use NetWorker to hot backup SharePoint, you should install NetWorker Module 2.4 SP1 for Microsoft Applications Application Guide (NMM 2.4 SP1). For detailed information about NMM 2.4 SP1, please refer to NetWorker Module 2.4 SP1 for Microsoft Applications Installation Guide, NetWorker Module 2.4 SP1 for Microsoft Applications Application Guide and NetWorker Module 2.4 SP1 for Microsoft Applications Administration Guide.
https://support.emc.com/search?text=NetWorker%20Module%202.4%20SP1%20&product_id=1136&resource=DOC_LIB

For the version compatibility question, I suggest checking NetWorker Software Compatibility Guide.
https://support.emc.com/search?text=%22NetWorker%20Software%20Compatibility%20Guide%22&product_id=1095&resource=DOC_LIB