Do you mean that you could see your page working in Firefox?
Then, the URL supplied to "createEngine" seems correct.
Anyway, may you please show the URLs by which you include the library javascript files (i.e. lscommons.js and lsengine.js) ?

Then, the problem might be in the domain management, where some differences between IE and Firefox lie.

In order to simplify the matter, please try with a canonical use of the host and domain names first, i.e.
127.0.0.1 web.aagtestdom.com
127.0.0.1 push.aagtestdom.com
and issue:
page.context.setDomain("aagtestdom.com");

Do you still see the page working with Firefox and not working in IE with this configuration?

If your tools pose any problem with the custom nonstandard attributes that Lightstreamer needs to identify the visual cells, then you can give up taking advantage of the cell support and use NonVisualTables to receive push data. In this case, you have to put the streaming data on the page in your own way.