Yes, XDP7 has all the web functionality of the XWD7P.
PVII widgets are made to work in Dremweaver only.
Supports both Windows and Mac OS X in the following Dreamweaver versions:
Dreamweaver MX
Dreamweaver MX 2004
Dreamweaver 8
Dreamweaver CS3
Dreamweaver CS4
Dreamweaver CS5—and higher.
Theoretically it may be possible to use their scripts, but there would be certainly no way to have their UI in XWD.