I decided to re-install from scratch. I've deleted the old database and uploaded the files for the newest package (1.7.6).
I also only have config.new.php because I've deleted the old config.php.
Pointing to install.php on my browser, I try to set everything up again, but come across this message:
Warning: mysql_connect() [function.mysql-connect]: Access denied for user 'geasses_hobby'@'localhost' (using password: YES) in /home/geasses/public_html/hobby/includes/db_mysql.php on line 39
An unexpected error occured. Please try again later.
Note that I altered my 4images folder to a different name: hobby.