Downloaded mod but what do I do now?

Ok, I have played arcanum for a while now. I have beat it 2 times. But im new to downloading mods for the game. I downloaded Troika's: Time, and Hellgate. As well as sinbads-ship-cabin-and-cargo-hold mod. I have also downloaded the nolevelcap_1074. The only one that I have unzipped that has worked it the no level cap. I havent tried Sinbad's mod. I have tried to unzip the Time and Hellgate mods to the arcanum folder. But they are unzip to becaome .dat. They dont seem to be selectable from the options menu. What have I done wrong? Do I need to put them in a specific folder? They are currently in the main Arcanum folder.

 

OK, I got the mods working but not sinbads addon. Every time i try to install it, it crashs to the desktop after the main arcanum loading screen. Anybody have any ideas how to fix this?