Eyeseeall, I am confidant you will hear from your mother.  It may take a while, but it will happen.  I have just started having a few dreams about my mother that I am sure are a visitation.  Just yesterday, I had overslept, and had the distinct impression of my mother laying beside me, holding my hand and talking to me gently.  It was such a pleasant little visit and put me in a great mood for the rest of the day.
You will always miss her, I don't think that part ever goes away.  Renee's story points out something very important -- keep your eyes and mind open to little things that might otherwise escape your attention.  Good luck dear!  It will happen, just give it time.