[ecfisa]

Hola lisette.

Probá de este modo:

...
#include "jpeg.hpp"
#pragma resource "resources.res"


void __fastcall TFPrincipal::FormCreate(TObject *Sender)
{
TResourceStream *Resource = new TResourceStream((int)HInstance, 1, RT_RCDATA);
TJPEGImage *JImage = new TJPEGImage;
  __try {
    JImage->LoadFromStream(Resource);
    Image1->Picture->Graphic = JImage;
  }
  __finally {
    Resource->Free();
    JImage->Free();
  }
}

Saludos.