Hi Mircea,
it seems you're almost there.
All you need is a XY Graph and a correctly bundled data cluster.
First, your cluster needs to be bundled in the correct order. First, wire the data representing your initial time (t=0). Then the uniform spacing on your X-scale (dt) and finally, your vector containing Y values.
Feed this cluster into a XY Graph. These graphs are polymorphic and will adapt to the correct format if it's a valid one. The above mentioned cluster is a valid format. The XY Graphs should be easy to find in your LabVIEW palettes. Do the same with phase data (t = 0; dt; phase vector).
PS. You can post your VIs directly instead of uploading compressed bitmaps...