For currency - use $json for https://tmi.twitch.tv/group/user/CHANNEL_NAME/chatters instead of on join\part and nicklist.
For other on-text events (which requires OP status for example) - you can modify your script: http://mypastebin.com/f2W61Hhgiz1Q (this is basic example of "How to do")

Dont give a fish - teach to fish!