The first article (the forum post) is not relevant for Sitefinity 4.0+, but the other two articles which you have followed are the right ones.
Can you please give us more details about the problem? Do you get any errors?
Also, can you confirm that you followed completely the article about configuring SSL
, especially the prerequisite Sitefinity requires that you setup the http binding on port 80 and the https binding on port 443.
This is the most important point for running under a secured connection - you need to have https binding configured for your website in IIS. Since you are in load balanced environment, you need to do this on all of the instances in the webfarm.
We are looking forward for your response.
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