Not sure if all versions of Word can create a pdf for you (I think only later versions with some addition can do), so if you've created the form as a Word document you can use a program such as cutePDF to convert to pdf (free):
http://www.cutepdf.com/products/cutepdf/Writer .asp
As for the website designing: no, I'm not a huge fan of publisher, especially for websites. It's just not made for it. There are lots of better programs out there that create websites (Microsoft's own Frontpage for one, though I don't like that either...), Dreamweaver (far more professional), or, my preference, just typing the code out manually (perhaps not best unless you particularly want to get into it though).