I would normally not post this but because you are having some issues with selling I will tell you what made my house go from no foot traffic to sold...
Number one thing if it's been showing that it's on the market for a long period of time, take it off the market for a few weeks so it now shows up as new on the market. Also, eliminate clutter, paint walls bright colors, and remove personal items. I know it sounds petty, but no clutter, bright walls, and no personal items (this includes crosses, etc..) People want to be able to picture themselves in your home, personalizing it makes them feel like they are in someone else's home. Also fix that basement wall by the stairs, it's the first thing that I noticed when I saw that picture and a little bit of mud and paint would fix that issue quickly.
I hope this helps, it looks like a nice house and a cheap price... some easy changes should help attract that buyer :-)