Moving to MyBB from JCINK

Hello.

I hope this is an okay place to post this/okay topic to post. My forum is looking to move from JCINK to MyBB. However, we weren't sure if a merge would be possible since I was reading that JCINK might use an outdated system. We are really wanting to move to MyBB to get away from some of the issues we have with the ownership of JCINK, but would hate to lose our 50,000+ posts.

Any help would be wonderful. And if this wasn't posted in the proper place, my apologies.