OK, so suddenly most of the youtube vids I used to watch and all of my photobucket vids won't play anymore.  I wanted to post a couple of   new videos of Kali and Odin playing in the Pines last weekend.  I'm told I need the new version of the Adobe flash player.  So I download it successfully but still no vids.  So I go back and delete the old version, #10 and reinstall #11 and still no dice.  It tells me that the download was successful but I'm still not able to see my videos.  Any suggestions?

Yep, try that. Also make sure that everything is installing correctly. Go to 'programs and features' from the control panel if you're running Vista or 7. Also, what browser are you using? Google Chrome, my personal favorite, comes with flash support. No need for add ons.  
 
Try a virus scan too. Sometimes weird things happen when you have them, even if the true nature isn't revealed (normally viruses work to partial screw up your computer, before telling you to buy some random 'antivirus' to remove it. Of course you'll just get your money stolen...).

clear your browser caches (all your browsers even the ones you don't use).  
Make sure you are using the latest version of firefox and at least version 8 of internet explorer.
 
uninstall flash, restart the computer and reinstall flash.  
 
 
Should work.