Yes, giraffic. With your Creative Cloud subscription you get hosting for up to five Business Catalyst webBasics sites.
You can find more about webBasics hosting here:
You won't pay any more for the hosting.
Check out the specifics for Business Catalyst webBasics hosting here:
At this point the upgrade workflow is not functional just yet, as mentioned here: http://forums.adobe.com/docs/DOC-2153
So the webBasics Creative Cloud cannot be upgraded directly to the webBasics+ level for now.
But a workaround for this case would be to re-publish your Dreamweaver/Muse project (I suppose you've used one of these solutions to build the site in the first place, right?) in a new trial/temporary site -> let us know what is the URL of that site (don't push it live) -> we will change the site plan from our backend to webBasics+ -> you will be able to publish it using the webBasics+ site plan.
Please note that this is going to be a separate charge, besides your Creative Cloud subscription. The monthly fee for webBasics+ will be $12.21/month, as mentioned here: http://www.adobe.com/products/business-catalyst/buying-guide-subscript ions.html
Another way to use the webBasics+ plan would be to simply trigger a new trial site here: https://syd.worldsecuresystems.com/PartnerPortal/FreeTrialSignup.aspx# splash with the same Adobe ID as the one used to buy the Creative Cloud subscription and take that site live separately.
Just to add to what Diana mentioned above.
Another option would be to use the free webBasics site and host your email with Google Apps. It's a free service and using Business Catalyst, you can point your mail to Google. So you get the best of both worlds.
Hope this helps.
Europe, Middle East and Africa