I use it on 2.2.9... works fine...
I just tried re-installing the hack using the Install v1.2.txt in the zip.. everything works fine!
so it's obviously you who did something wrong during the installation procedure...
make sure the names of the templates are correct..
uhm.. try posting your getinfo template, sonic3d...
and make sure you ran the SQL query right... obviously it wouldn't work if the "profiletagboard" table wasn't created in your database
you can also try emailing/attaching your member.php file.. (applies to both of you)