There, now doesn't it feel better you helped out also.
Your problem is easily fixed. You need to get a piece of flashing made with what is called a brake for bending metal. Any siding co will bend your stuff for a small fee I'm sure. It needs to go behind the siding AND most important , behind the housewrap which may or may not be installed and then cover the brick ledge and bend down over an inch. It needs to layer on top of one another so the water runs off. The siding is only a rain screen, water gets behind it. The house=wrap does most of the work when water gets behind it. You will also need a siding removal tool, they are like 8 bucks at any lumberyard. What they do is to separate the piece above at the bottom seam. You will need to remove at least the first bottom course. If you have no housewarp underneath like tyvek or tarpaper, you will need to remove all the siding, wrap the area and reinstall the siding. Actually it is pretty easy to do. As for the rain coming, they do sell tarps. Good luck, hope it helps.