we are going to push the new MonoX release in a few days that will have some bug fixes included and many new features. One of the features that may interfere with your upgrade is the new responsive design theme that we are going to introduce. So if you want to upgrade to the latest version of MonoX which will not have the new theme we can send you the version number that you can use to upgrade and go live. After that you can go slowly and upgrade your skinning changes on top of the new theme.
Let me know if that suites you ?