Next time, quote my post so I'll get an alert, please, so I can reply quicker.
I am playing a custom modpack, so you are likely not going to end up on the same page, but you will see the two MystCraft tabs when you are on the right page.
If you don't have two MystCraft tabs, verify what version of MystCraft you are running, or what version of MindCrack/DireWolf20 you are running.