I am typing mybotsname cadd on
followed by !cadd Twitter http://www.twitter.com/lokiramos
Is the bot confirming that the script is then turned on? it should say its been turned on for that specific channel on that specific network.
Then when you type !twitter, you get the output of http://www.twitter.com/lokiramos right?
Firstly, you are typing where it says BOTNAME in my instructions, the actual name of the bot right? so if your bot with the loaded script is called Blonk, you type 'Blonk cadd on' without the ''
Second, you have full op (@) privileges in the channel?
Third, you did load this script in to a new remote file away from all other scripts? don't load it with any other script on your bot, this can cause a break.
The ini file creates itself if it does not exist in the first place, what are you typing when you add a command?