In the wheel building world, the hub doesn't matter, only the external dimensions, and number of holes. You could have 3 hamsters on a treadmill inside, it's all the same.

Go have a beer, read my posts Nos 8 & 10, then bring the hub, 2 spokes & the rim to a table along with another beer, and read, drink and look at the parts until it makes sense ans you can get those two spokes only in place.

BTW- I didn't say, but it's important that you don't let the hub twist around with respect to the rim after those spokes are in (rare, but can happen. protect yourself against that error by putting a mark on one side of the rim near the valve and calling that the right side from now on.