Um - it's never easy to fix a problem like "Dreamweaver doesn't work", but Dreamweaver should indeed display your files, no matter how they were coded, PROVIDED that they are valid. Dreamweaver can't always display the more sophisticated niceties the HTML and CSS together allow, but it usually has a darned good go.
If you Google W3C, you can get a bot to check your pages for HTML errors (and you may be surprised how many errors slip through!). If you correct those (I feel sure you'll find some), then you may find the problem goes away. Try that and post again if it doesn't help!