Relax, you've come to the right place. This forum is just full of good information and good people that will be glad to help you.
First, let me recommend a different scope to you. The one you've mentioned has some features that are not necessary (illuminated reticle). Given the low price along with unnecessary features, tells me that the overall quality of the optic is not great. Save a few more dollars and get yourself a better scope. Here's the one that I started with:
Bushnell Elite 10x40 MilDot Target Turrets Argon Fixed Power Riflescope FREE S&H ET1040. Bushnell Rifle Scopes.
You can see the scope on one of my rifles here: My 308 1k Rifle - The Evolution Continues!
As for mil-dots with moa turrets, I want you to ignore the mil-dots until you have a better understanding of mils. You should concentrate on learning to dial your corrections with the turrets. So take your shooting solution and set it up for moa adjustments.
Here's an example of adjusting your turrets for a 600 yard shot. Lets say you input all your data into your shooting solution (bullet weight, BC, velocity, temp, barometric pressure, altitude) and at 600 yards it says you need 12.25moa 'up'. In the case of the scope I mention above, it has 10moa per revolution. This means you would turn one whole revolution, and keep turning until you get to 2.25.
As for wind, many shooting solutions default to 10mph. My recommendation is to input wind as 1mph. This way the math is easy as it means you know what your wind correction is per mile per hour. Lets say your shooting solution says that you need .5moa per mil per hour of wind at 600 yards and the wind is blowing from 3 o'clock at 4mph. 4mph x .5moa = 2moa 'right'. Turn your windage know to 2moa 'right.' Then hold the crosshairs on the target and watch the bullet go there. If it doesn't, your wind call is off.