Maybe if you post a few pictures and tell us a little bit more details about your problem,the magic post will appear.
Since i have no idea what's wrong with your samp,you could try completely reinstalling it(including GTA San Andreas).Make sure to remove every single file of it from your computer before you start an install process again(check 'Roaming' folder,if you don't know how to reach it,type '%appdata%' in your 'Start' bar.)