Need help. Complete Redo of Current Website

[Astoufflet]

How do I completely redo a website. Everything is outdated. This website was redone in 2010, by another person.

How do I go about starting from scratch without having to interrupt the current website.

Where do I begin?

I would be using Adobe Dreamweaver if possible.

[Dr.CSS]

The only reason to use DW is for the design of the site, any and all changes to the site including the look/theme are done in the admin side of the CMSMS system found most times at yoursite.com/admin/login.php once in there you go to Content > Pages to change content or Layout > Templates/Stylesheets to change the look/layout of the site...

If you haven't ever seen the default install content you can look at the site linked in my signature which will tell you how CMSMS works...

[Astoufflet]

Thank you.

I need to update almost all of the modules, but because I didn't create the website when I tried to edit things before other things would not work anymore. That is why I wanted to do a completely new website design.

Also, I do want to completely change the layout/look of the website to look more innovative with the time.

Would I download the current HTML and CSS and edit them in a different program?

[Astoufflet]

i am also getting this:

Warning! Please removed the modules/FileManager/postlet directory completely, as this has been obsolete for many, many versions. (Troubleshooting)

It will not let me open any Files in my FileManager. How do I delete the "postlet folder" and where do I find this?