Coding Hints / rules to make my entire website HTTPS secure

My Website exists entirely in a single root directory; with separate folders for PDF's, Word files, Images, art work, and HTML references for HTTP and HTTPS sites.  As long as all content is in only the root directory HTTPS is enforced throughout entire site as users browse (IE, Safari, Chrome, Firefox).  If organized folder structure is used HTTPS security fails.  

I have tried many different forms of inline and direct referencing of content But I cannot establish site wide HTTPS for full site browsing.

I run my site on WebServer 2008 - IIS 7.5;  I have security certificates;  My pay page security works fine;  My driving desire to achieve site wide HTTPS validation is that Google gives all sites that are fully HTTPS secure site higher ranking / weight the earlier it is adopted starting this month.

Please Help.
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Dave BaldwinFixer of ProblemsCommented:
Look at 4. Redirect to HTTPS in .  And usually using 'relative' links that do not have 'http://' keeps the connections using the same protocol as was used for the current page.  If you use 'absolute' links then you must prefix them with 'https://'.

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eanmdAuthor Commented:
Great solution. Thanks for the help !
Dave BaldwinFixer of ProblemsCommented:
You're welcome.
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