re: colors
I don't know of any apps offhand that do that, but there are a TON of color chart webpages out there that do (Google). There used to be an extension for Firefox that would give you the number and name of the color, but unfortunately it seems to have been abandoned. :(
re: banner/borders
That, actually, is your background image (kubrickbg.jpg). IMO the easiest thing to do would be to adjust the size of your header image just a little bit to match. :)
re: home page
You can pick any existing page as your "home" page. For instance, if you decided that the first thing you wanted your visitors to see when they visit http://www.vinov.com is your "About us" page, you'd simply go to Options, then Reading in your Admin panel. Under "Front page displays:" choose "A static page (select below)" and from there choose "About Us" from the drop down list.