how to re-organize menu icons on N900 (with catorise)

You can get the icons in the menu of your N900 organized into folders using an application called catorise.
This app automatically groups the menu icons and puts them into different folders of meaningful names.
But sometimes you feel ... hey this icon should be in the games folder why is it put into the ovi folder??? I felt this when i saw bounce in ovi folder after installing catorise.
And so i launched the xterm and started looking for some kind of a config file or something where i can change the grouping. Went into the /opt folder to check out the installed apps ... there was a folder catorise cd into it and ls ... there was something very obviously named file 'menu'. But i need to be root to edit this, became root and opened this file using vi. It is a simple config file with this syntax ->
app name: folder name
I changed ->
bounce: ovi
to this ->
bounce: games
Saved it and closed it.
Then ran the perl script named catorise in pwd.
This changed the grouping, bounce appears in games than in ovi :)