Here is the easy way to it....
You only have to do this once!, (on your first script start) From then on it will all be automatic.
1/.First, (if you havnt already done so), REGISTER an account with UKchatters chat website, which is at >>> http://www.ukchatters.co.uk/register
2/.Then start script, and on the "CONNECT" popup, fill in that REGISTERED NICK and ANY alternative nick and then click CONNECT.( DO NOT click the OK button, just the CONNECT BUTTON!!)... Dont change any other info.
3/.Then you will get two popups come up , one for your registered nick and then one for your registered password,... fill each one in and ok them.
The script will then auto-connect to UKchatters server, auth your account, and bring up the roomlister ... double click rooms to join them.
This info is also on the "HELP" button on the bottom toolbar