1. Yes, this is our oversight. Thank you for pointing it out.
2. NewsCalendar works properly for us. The possible reason for problems on your side can be that old SItefinity version are not properly uninstalled (not all directories are removed). Can you check some properties of this control? Open to edit properties Misc::NewsList
TemplateUrl = ~/Common/Templates/News/NewsList.ascx
SingleNewsPage = ~/AboutUs/ShowArticle.aspx
3. Yes, this is a bug. After creating the page, its order is not set. After you first move a page, the internal order property is set for all pages. As a workaround, we recommend for the bogus behavior to move up and down one page of your collection and all should be fine.
4. Not everything on Upload control form is styled correctly. We hope our designers will see to all styling issues for the upcoming Sitefinity 3.0 release.