Followed Lots of Troubleshooting, still need help

[Salu 0]

Which version?: Steam
Beta patch: I have downloaded 108074(yes I used the step by step process to install this and had the correct reading just like in the example given) but on the Day Z commander it said this was out of date and had me go to the 103718, as this was the most patch listed there.
Launch option: I have been using the Day Z commander
Error Message: This
PC Specs: I don't remember how to look these up, but I am well aware that this PC can run this on highest settings with no problem.
OS: Windows 7


Now there should be some other things that I ran into, before downgrading my beta patch I wouldn't get this error message if I launched via Day Z Commander, only if I launched it through steam I would get this. However, I would get an error message of a bad file(though I had fixed most via Day Z Commander), and I would just get stuck with the loading screen, or I would be to the point where I could start playing with an error box.

As for my current problem with the CD key, I read the fix for Steam versions, but when I do the integrity check it says: Steam error - close all games or tools currently running before doing the check. Though of course nothing is running.

I have never had a place to "punch in" my key code, nor could I find a spot to do so. My guess would be that I'm over looking something easy here. Least I hope.

[Salu 0]

Okay just logged in successfully to a server, well atleast beyond the CD error. I'm getting to the point where I literally load in, goes through character loading etc, then it says I cannot play because my version is 1.7.7.1 and the server is running 0.2.3. I assume this is reffering to the Overwatch mod version not Day Z itself, however I can't change the load order so that Overwatch is before Day Z.

[Salu 0]

Can anyone please help me out here? I really want to enjoy this game.