What are you actually specifying as connection string?

orm.connect('db' // <--- what is 'db' (don't send password, send everything else)

If you're using sqlite (there's obviously no password, duh..), you must specify as:

orm.connect('sqlite:///path/to/file', function (err, db) {
    // ...
});

Here is a full listing
var orm = require('orm');
orm.connect('sqlite://D:/Dropbox/sites/myblog/db',function (err,db) {

  if (err) {
      throw err;
  }

  var Subscriber = db.define('subscriber', {
    "id":Number
    "bill":Number,
    "fullname":String,
    "houseno":String,
    "flatno":Number
  });

  Subscriber.find(function(err,people) {
    res.render('subscribers', { activePage:'subscribers',title: 'Subscribers',subscribers:people }); 
  });

});

people is undefined

It seems url.parse() does not handle D:/... in the URL, which is actually right. I have to update the url parser. Try this instead:

orm.connect({ pathname: "D:/Dropbox/sites/myblog/db" }, function (err, db) {
    // ...
});

If you use this latest commit, you should be able to do:

orm.connect('sqlite://D:/path/to/file', function (err, db) {
    // ...
});