Hi everybody, I have a question maybe a little bit OT but do not know where to ask

I am adding POI with POISoN program, BTW it seems it does not actually load the POI into the DB file at least the window does not tell me that POIs have been loaded. I guess it a GTK problem and I downloaded GTK 2.14.7..however I am not able to install the package... can anybody help me out?