Try This :
string path = "",file_path="",image_path="";
path = Server.MapPath("images/");
if (FileUpload1.HasFile)
{
string file_ext = System.IO.Path.GetExtension(FileUpload1.FileName);
FileUpload1.SaveAs(path + FileUpload1.FileName + file_ext);
image_path = "images/"+FileUpload1.FileName+ file_ext;
Apply the Insert Query with image_path
}
If any query Please Post it....