one must still know PHP when using dreamweaver MX. dreamweaver is sorta like a helper program to graphically layout the page, build tables, embed pictures. the php support in dreamweaver means that it does syntax hilighting, line numbering, and when you preview a page you are working on.. it knows that the page is php so it will upload the page to the server before previewing because PHP can not be previewed on a computer that is not a web server. i develop in text editors and used dreamweaver mx for about an hour while someone showed me what it was like. it's the first version of dreamweaver i think i could actually work with while using php. i'm sure it does more that what i just explained, but that is what i got from my 1 hour of trying it out.
hope this helps.
