8Bit Bitmaps Problem

I found a function on the 'net which is supposed to load an 8bit bitmap and display it. I think the problem is it loads it but doesn't display it - if this is the case, could somebody tell me how I should display it?

Here it is:

Code:

/* LoadBMP(): Loads an 8bit Bitmap */
int LoadBMP (char *filename)
{
	 FILE *BMPFile;
	  unsigned char c, Palette[256][4];
	  unsigned int  offset, lines, paddedWidth;

	  /* This checks for the file */
	  BMPFile = fopen(filename, "rb");

	  if (BMPFile == NULL)
	  {
			printf("Cant open file.");
			return 1;
	 }

	 /* Read the header information */
	  fread(&Header, 54, 1, BMPFile);

	  if (Header.bfType != 19778 || Header.bfReserved != 0 || Header.biPlanes != 1)
	{
			    /* Not a valid bitmap file - don't display */
			printf("Not a valid bitmap.");
			fclose(BMPFile);
			return 1;
	}

	  if (Header.biCompression != 0)
	  {
			/* Compressed file - don't display */
			printf("Compressed file.");
			fclose(BMPFile);
			return 1;
	 }

	  if (Header.biBitCount != 8)
	  {
    			/* If the file is other than 8-bit dont read. */
			printf("Not an 8-bit bitmap.");
			fclose(BMPFile);
			return 1;
	 }

	  if (Header.biWidth > 320 || Header.biHeight > 200)
	  {
			 /* If its larger than 320*200 dont load. */
			printf("Size too large.");
			fclose(BMPFile);
			return 1;
	 }

	  /* Load the palette info */
	  fread(&Palette, 1024, 1, BMPFile);
  
	  for (c = 0; c < 255; c++)
			SetDAC(c, Palette[c][2] >> 2, Palette[c][1] >> 2, Palette[c][0] >> 2);
	
	    offset = (100 + (Header.biHeight >> 1)) * 320 + 160 - (Header.biWidth >> 1);
	  lines = 0;
	  paddedWidth = Header.biWidth & 0xFFFC;
  
	  if (Header.biWidth != paddedWidth)
			   paddedWidth += 4;

	 /* Loop for reading lines */
	  while (lines < Header.biHeight)
	  {
			 fread(VideoRAM + offset, paddedWidth, 1, BMPFile);
			offset -= 320;
			lines++;
	 }

	  fclose(BMPFile);
	  return 0;
}

Sorry about the spazzy layout, I copied and pasted it from my IDE.
It's probably a really n00bish problem

http://nehe.gamedev.net/lesson.asp?index=02

8bit Bitmaps arent supported by OpenGL
only 64 128 and 256 no wait oops talkin bout image sizes dumb but in case you wanna know you have to MipMap to get around that

I'm not programming in OpenGL, it's DOS Mode 13h [320x200x256].

Then try here.