I have 13.04 installed from a DVD that I got on eBay but the application launcher is missing. I've tried CCSM but it won't work!
If you can't download the CD, you could buy from the Canonical Shop here: http://shop.canonical.com/product_info.php?products_id=976
We don't offer support to variations of Ubuntu, forks, unofficial variants and derivatives are not controlled or guided by Canonical Ltd. (list on Wikipedia) and generally have different goals in mind. You should ALWAYS download/buy Ubuntu from trusted sources, preferable directly from the makers. You should verify your CD, so it won't include defects or modifications.
- Insert your Ubuntu CD into the drive of the computer that you want to run/install Ubuntu onto.
- Turn the computer on, or restart the computer.
- While booting from the CD, hold any key to access the CD menu.
- At the CD menu, choose 'Check CD for Defects' (if you never get to the menu, try BootFromCD)
You can also order CD's from a third party at http://www.osdisc.com/cgi-bin/view.cgi/products/linux/ubuntu
You can download Ubuntu for FREE from the Ubuntu website, all you need to do is write it to a CD/DVD or USB drive and you have it for free for ever! Go here
Ubuntu Hashes website has the file verification hashes of all of the Ubuntu releases. Install GtkHash and check your 13.04 disk (or whatever it is) file verification hash to see if you bought a bad 13.04 disk on eBay.
It is highly recommended to either buy direct or download iso from ubuntu.com. You could compare checksums from ubuntu site with your dvd to verify files.
Have you tried searching Ask Ubuntu? The search function is very handy tool with many filters. Using search to look for the term "missing launcher" gives these search results clicking on the votes filter resorts results into a list where the most amount of users have found useful answers to same term. Like these results
Look at this Ask Ubuntu q+a here which highlights the need to reset Unity (the thing that takes care of many features of Ubuntu Desktop) and update and upgrade. Looking at this q+a here which will give even more options on how to fix.
As this is a fresh install i would personally recommend updating upgrading before rebooting to see what results are before trying the reset unity options.
Hope this helps with getting acquainted with Ask Ubuntu and welcome. Please update your question if there is any more trouble getting going with your new Ubuntu install.