The original question is not clear. Are you saying that you know HTML, but would like to use DW to build a site? I don't think there's anything that LP needs to do to specifically support DW, so your best bet would be to buy a book on DW (to supplement whatever came with your DW purchase) and learn to use it from there. There may be some good online tutorials too.
Frankly, if you're experienced with HTML, I don't know why you'd bother with an HTML editor like DW, but that's your choice. You'll probably find it to be excessively restrictive and you'll find yourself constantly fighting it to do just what you want it to do. The only reason I'd consider DW is that further support of the site will be handed over to someone not experienced with native HTML. Even then, I find that laymen given a WYSIWYG page editor to work on existing code tend to screw it up pretty badly.