Having a little trouble with bitmaps...

Question

Ok, here goes... I got my little rpg man walking around in a grass maze and everything. That's cool and all except for the fact that my little guy has a white border all around him from the original JPG. Any tips on how to get rid of that white border so I can just see the green grass tile under him the way it's supposed to be?


Here is the part of the program that concerns the Hero sprite.

Can someone please give me advice on what I should do?
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
 
using System.Drawing;
using System.Drawing.Imaging;

namespace WindowsFormsApplication6
{
        public class Hero
        {
            public Point Position;
            static Bitmap HeroImage = null;
            static Bitmap HeroImage2 = null;
            int inc = 3;
            int LastPositionX = 0;
            int LastPositionY = 0;
            public Hero()
            {

               
                Position.X = 30;
                Position.Y = 35;
                if (HeroImage == null)
                {
                    HeroImage = new Bitmap("Hero.jpg");
                }

                if (HeroImage2 == null)
                {
                    HeroImage2 = new Bitmap("Hero2.jpg");
                }
            }
            public Hero(int x, int y)
            {
             
                Position.X = x;
                Position.Y = y;
                if (HeroImage == null)
                {
                    HeroImage = new Bitmap("Hero.jpg");
                }

                if (HeroImage2 == null)
                {
                    HeroImage2 = new Bitmap("Hero2.jpg");
                } 
            }


            public Rectangle GetFrame()
            {
                Rectangle myRect = new Rectangle(Position.X, Position.Y, HeroImage.Width, HeroImage.Height);
                return myRect;
            }

            public void Draw(Graphics g)
            {

                Rectangle destR = new Rectangle(Position.X, Position.Y, HeroImage.Width, HeroImage.Height);
                Rectangle srcR = new Rectangle(0, 0, HeroImage.Width, HeroImage.Height);


                // make it look like the legs are moving
                if (((Position.X % 2 == 1) && ((Position.X - LastPositionX) != 0)) ||
                     ((Position.Y % 2 == 1) && ((Position.Y - LastPositionY) != 0))
                   )
                    g.DrawImage(HeroImage, destR, srcR, GraphicsUnit.Pixel);
                else
                    g.DrawImage(HeroImage2, destR, srcR, GraphicsUnit.Pixel);

                LastPositionX = Position.X;
                LastPositionY = Position.Y;
            }
            public void MoveLeft(Rectangle r)
            {
                if (Position.X <= 0)
                    return;  // precondition

                Position.X -= inc;
            }

            public void MoveRight(Rectangle r)
            {
                if (Position.X >= r.Width - HeroImage.Width)
                    return;  // precondition

                Position.X += inc;
            }

            public void MoveUp(Rectangle r)
            {
                if (Position.Y <= 0)
                    return;  // precondition

                Position.Y -= inc;
            }

            public void MoveDown(Rectangle r)
            {
                if (Position.Y >= r.Height - HeroImage.Height)
                    return;  // precondition

                Position.Y += inc;
            }
        }
    }