Those are dynamic lights you are using and Direct x 9 will only show 8 at a time. Placed static light can be placed and a F3 light map performed on them to allow you to see them in test game.
Use the static lights to fill the space with the color you want. Never use the full pure color, bring the saturation down and the lamination and turn up the range. The default seem to be as bright a porch light
As lighting in a WIP, more advancements will be available in time. But it is getting better every update even.
Settings
Static lights after F4 lightmap. The one on the right is 100 off the ground with a range of 1500 half red and is about 450
units away from those walls, the next one to the left is 100 off the ground 1000 half purple, and is around 350 units away from that wall. the next ones going left are 700 mid green, 600 mid yellow, 500 Default pure white. those cubes are the 50 x 50 ones from the fixtures library.
so crank up the range vales on these and raise them off the floors a little. try to get it so the corners of where you trying to light are still dark. adds to the scene.
This last one I can see the sun light and the light above it cast there own separate shadows now. This is pleasing and makes me want to open some of my scenes and play with lighting for a week.
I just had to post this one also, cause it gets better with each update.
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