What is configiration storage:
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wiki.phpmyadmin.net]
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www.phpmyadmin.net]
You probably do not need it, so dont bother. Its just some extra features you probably dont need until you are more familiar with mysql and phpmyadmin.
How to upgrade:
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wiki.phpmyadmin.net]
Not sure why you would bother but you know best. Do it at your own risk though.
PS. Wamp Server is not a server, its just a tool that installs Apache (a web server), MySQL ( a database server ) and PHP ( a coding language ) plus some useful tools like phpMyAdmin and XDEBUG with pre configured setting so they all work together ( out of the box ).
Its a very fiddly process to do them all individually so the nice guys here do most of the heavy lifting for us.