translucent mats and omni lights

[renderinglover]

Hi guys I am working on an interior scene with corona,and I am having a problem with a translucent material,I need to create a lamp shader so light can pass through,I tried ticking the translucent option in the material but nothing works.
And another problem:
How do I create an omni that emits light in all directions,lights in corona seem to only work following the z axis? why?

[johan belmans]

Because you have chosen DISK instead of SPHERE in the shape option of Corona Lights?

[renderinglover]

Oh ok yes I didn't even see that thank you