I have this exact same problem. Carried out an upgrade from Smartor and everything is running smoothly except personal galleries are causing a few issues.
I have the same problem that the module isn't showing up in the User CP, have you found a solution?
I completed (checked, and rechecked!) all installation steps! Is this step missed in the upgrade from Smartor and only included in the standard base install?
-edit-
FOUND IT!
It is missing from the install.xml file.. so should this be flagged as a bug?
# root/includes/ucp/ucp_gallery.php,
# root/includes/ucp/info/ucp_gallery.php,
Need to be copied over (install.xml only covers ACP, not UCP).
From there you can add the module using -Aministration Control Panel -> System -> User Control Panel -> select 'Manage Personal Albums' -> Add Module
