I downloaded and installed the securityanalyzer. I attempted to fix the few X errors. I say attempted because changing the password to Hashed caused an error on the site, so I changed it back to Encrypted.

I've looked at the pages that show (Alpha Version:... ) in Google, and that text is only found in the HTML by viewing source code on those pages. How do I remove the text on each page, or more specifically how do I access the HTML for individual pages. 

I ran the security analyzer and went through all of the results... but none of the results say anything about the DNN version being appended to my title text. I have found one article about this on Google, and the only fix was an upgrade. https://dnntracker.atlassian.net/browse/DNN-19405

I went from 7.2.2 to 7.4.2, and can't go to 8x, because my bindtuning skin doesn't support 8x yet. 

I understand that DNN pulls content from numerous files to make a page, but I have no idea how to figure out what file is appending " (Alpha Version: 7.4.2.157)" to the title all of my pages. I have access to the server and have searched all of the files for this content, with no results. I've pulled an old Default.aspx file and compared it to the new one, and see a bunch of changes, but nothing specific enough to know for sure that is what is causing the problem. 

You say I need to analyze... how can I analyze that specific problem when searching 'Alpha Version', or 'Alpha', or '7.4.2' doesn't show up anywhere?

I found this in the host settings and unchecked it, but didn't notice a change in Google yet.

I looked through the HostSettings.aspx and found the below in the HostSettings.ascx.cs file. Does this look like it may be creating my problem? Should I change the true to false? Once again, I am not a programmer, so I've not made changes to this type of file. And thank you so much for your assistance!

lblVersion.Text = Globals.FormatVersion(DotNetNukeContext.Current.Application.Version, false);