Getting an embedded resource

I'm stuck on this one...

I've figured out how to get an embedded picture file to be referenced (and that successfully shows a pic in a control, depending on another item being clicked). That works fine, got loads of pics sorted. What I can't figure out is how to read an embedded text file, process it, and throw the data in to an array.

Code:

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public ResourceManager pics128Ships = new ResourceManager("POS_and_Fuel_Calculator.128shipPics", Assembly.GetExecutingAssembly());
        public ResourceManager pics128Pos = new ResourceManager("POS_and_Fuel_Calculator.128posPics", Assembly.GetExecutingAssembly());
        public ResourceManager pics256Pos = new ResourceManager("POS_and_Fuel_Calculator.256Pics", Assembly.GetExecutingAssembly());
        public ResourceManager DataPOSShips = new ResourceManager("POS_and_Fuel_Calculator.POSandShipsData", Assembly.GetExecutingAssembly());

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the first three are pictures, no problems with those, so I should expect to do the same with the last one, which calls the *.resx file that has the information about the text files.

However, I'm not sure if I should be using the streamreader method to read through the text files, as building the program is fine, but running/debugging it produces -

Code:

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System.ArgumentNullException was unhandled
  Message="Value cannot be null.\r\nParameter name: path"
  Source="mscorlib"
  ParamName="path"
  StackTrace:
      at System.IO.StreamReader..ctor(String path, Encoding encoding, Boolean detectEncodingFromByteOrderMarks, Int32 bufferSize)
      at System.IO.StreamReader..ctor(String path)
      at POS_and_Fuel_Calculator.Form1.Form1_Load(Object sender, EventArgs e) in K:\Programming Projects\POS and Fuel Calculator\POS and Fuel Calculator\Form1.cs:line 43
      at System.Windows.Forms.Form.OnLoad(EventArgs e)
      at System.Windows.Forms.Form.OnCreateControl()
      at System.Windows.Forms.Control.CreateControl(Boolean fIgnoreVisible)
      at System.Windows.Forms.Control.CreateControl()
      at System.Windows.Forms.Control.WmShowWindow(Message& m)
      at System.Windows.Forms.Control.WndProc(Message& m)
      at System.Windows.Forms.ScrollableControl.WndProc(Message& m)
      at System.Windows.Forms.ContainerControl.WndProc(Message& m)
      at System.Windows.Forms.Form.WmShowWindow(Message& m)
      at System.Windows.Forms.Form.WndProc(Message& m)
      at System.Windows.Forms.Control.ControlNativeWindow.OnMessage(Message& m)
      at System.Windows.Forms.Control.ControlNativeWindow.WndProc(Message& m)
      at System.Windows.Forms.NativeWindow.DebuggableCallback(IntPtr hWnd, Int32 msg, IntPtr wparam, IntPtr lparam)
      at System.Windows.Forms.SafeNativeMethods.ShowWindow(HandleRef hWnd, Int32 nCmdShow)
      at System.Windows.Forms.Control.SetVisibleCore(Boolean value)
      at System.Windows.Forms.Form.SetVisibleCore(Boolean value)
      at System.Windows.Forms.Control.set_Visible(Boolean value)
      at System.Windows.Forms.Application.ThreadContext.RunMessageLoopInner(Int32 reason, ApplicationContext context)
      at System.Windows.Forms.Application.ThreadContext.RunMessageLoop(Int32 reason, ApplicationContext context)
      at System.Windows.Forms.Application.Run(Form mainForm)
      at POS_and_Fuel_Calculator.Program.Main() in K:\Programming Projects\POS and Fuel Calculator\POS and Fuel Calculator\Program.cs:line 17
      at System.AppDomain.nExecuteAssembly(Assembly assembly, String[] args)
      at System.AppDomain.ExecuteAssembly(String assemblyFile, Evidence assemblySecurity, String[] args)
      at Microsoft.VisualStudio.HostingProcess.HostProc.RunUsersAssembly()
      at System.Threading.ThreadHelper.ThreadStart_Context(Object state)
      at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state)
      at System.Threading.ThreadHelper.ThreadStart()

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The error originates from the first line here - (which is pretty much the first line of code in the whole program)

Code:

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StreamReader sr = new StreamReader(DataPOSShips.GetString("Ships.db"));
            //StreamReader sr = new StreamReader(@"K:\Programming Projects\POS and Fuel Calculator\POS and Fuel Calculator\POS.db");  //the old way of calling a file (it worked...)
            StringBuilder sb = new StringBuilder("");
            int stringCounter = 0;
            while (fuelSize != -1)
            {
                char char1 = (char)sr.Read();
                string string1 = char1.ToString();
                if (string1 == "#")
                {
                    shipsList[stringCounter] += sb.ToString(0, sb.Length);
                    break;
                }
                if (string1 == "@")
                {
                    shipsList[stringCounter] += sb.ToString(0, sb.Length);
                    sb.Remove(0, sb.Length);
                    stringCounter++;
                }
                else
                {
                    sb.Append(string1);
                }
            }

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What should I be doing to read in this damn text file??

Code:

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StringReader sr = new StringReader(DataPOSShips.GetString("Ships"));

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That's how...