I have just ordered some pro2's with from rims and stans tubeless kit.

Please could someone explain to me the different tyres one gets as its throwing me right off.

You get tubeless tyres, UST tyres, Wire tyres, and normall tyres. All of which come in differing compounds…right?

If so which of the above can you run tubeless on the flow rims?

with a rim strip and valve theoretically all of them although different brands have different thickness sidewalls and may seal easier
chack http://www.justridingalong.com for lots of advise on tubeless, Stans and tyre recommendations (Non UST Maxxis are good)

Any tyre can be run tubeless on stans rims. Some tyres will be easier than others. UST/Tubeless tyres will be easiest to get inflating and staying inflated. Non-UST tyres it can be a bit hit or miss. See http://www.notubes.com/support_tire.php for recommended tyres. If its your first attempt at tubeless UST tyres are the easiest option.

Thanks guys ill take a look.