I have 2 litte suggestions for the footer.tpl
1) replace the hardcode powered by with wordlet
2) remove the version from footer. If a security bug found this made it not so easy to identify your running version
line 48:
<a href="https://www.ubbcentral.com/" target="_blank">Powered by UBB.threads™ {$VERSION}</a>change to:
<a href="https://www.ubbcentral.com/" target="_blank">{$lang.POWERED_BY} UBB.threads™</a>