Mod is now Modular, and has separate files for hiding enemies and locations. The NMM Installer has been updated to reflect this and now lets you choose what you want using checkboxes.
The options are:
Hide Enemies
Hide Locations
Hide Quest Markers
Some people had been reporting issues installing the previous version of the mod using NMM 0.61.1. I have now upgraded to this version and can confirm that the installer works with this version. If you continue to get issues, please let me know in a comment or a PM and I will try to figure out what the issue is. It is most likely an NMM Issue rather than a problem with the mod.