Hi @mindgames
I would jump into your PHPmyAdmin (server database) and run some SQL on the wp_postmeta table.
You can do a find and replace for the old value to the new value. Please backup your DB before running any manual SQL.
Somehting like this should work:
UPDATE <code>wp_postmeta</code> SET meta_value='<span rel="tooltip" title="Jackpot" class="btn-danger mini-badges">J</span>' WHERE meta_value='<span title="Jackpot" class="btn-danger mini-badges">J</span>'
Hope that helps.
Thanks
E