Youāre going to need to give us a liiiitle bit more information to help solve your problem.
How are you applying your āformattingā? CSS file? If so, have you changed the references to said CSS file in your code to correctly point to the fileās new location?
In addition to what @m_hutley stated, load that new page in a browser and āView Sourceā the page. Look at all src and href attributes to make sure that they are pointing to where they should be pointing. I suspect that they wonāt.
Is there a reason why you need to use such an old version? Outdated software is likely to cause as many problems as it solves.
As far as Iām aware, CS5 doesnāt support HTML5, so itās no wonder youāve run into problems trying to add an HTML5 bootstrap footer, as discussed in your other thread.
Are you writing your code using the editor and testing in a browser (if yes, which browser are you using) or page-view (whatever itās called), the Dreamweaver built-in thing that renders your code?