Even better. Now you can save the origianl thumbnail preview of the drawing. Here is the code portion I changed to do so.
if (ShouldSave == true) {
db.RetainOriginalThumbnailBitmap = true; // Added line.
DocEd.WriteMessage ("\n Saving file {0}", dbxDoc.Name);
dbxDoc.SaveAs (dbxDoc.Name, Type.Missing);
}
THANKS AGAIN TO ALL WHO HELPED ME COMPLETE THIS!!