Visual approaches in IFR conditions are just that, visual.
If you do not have the runway in sight, then you have to go back to approach control. They will do their best to line you up in the direction of the runway, but if the visibility is so bad, that you cannot see it, then you have to go around. Real pilots would do the same thing. It is up to you to find the runway. ATC points you in the "general" direction, but it is your responsibilty to locate the runway and tell ATC,"...I have the runway in sight." At that point they will turn you over to the tower.

While you are making your approach, look at the options in you communication list. Pick the one that applies.
