Good, so you have managed to to get CChat Pro onto your computer... Go on then, open it up. Now, you will have a nice little box on your screen, similar to the one that you would get when you open CheetaChat.
NB I recommend copying your ignore, emote, macro and alias files to the folder where you have Cheeta Chat Pro.
Anyways, Click on Add/Change and insert your user details as you would with Cheeta Chat. Once that's done, select the room you want to go to, and click on Log On!
You'll then be in the chat room. User's text will look strange, this is because there have been many updates of the Regular CChat and not CChat Pro. So, I recomment having a CChat window, and a CChat Pro window open too.
On the bar at the top, you will find similar things as those in CChat, but with a few changes..... There is a "Robot" pull down menu, this is where the fun starts. Click on that, then click on "Edit". In this little dialogue box scroll along at the top until you come to Triggers.
Click on "Add". Where it says "Trigger" you type in a word that you want the bot to respond on. For example, type "LOL" here. Then in the box underneath that, type it what your bot will say whenever someone says "LOL".
Repeat this step til you have all the triggers you want, you can always add more.
Click on Robot again, then click "Enable Triggers" now the bot will respond to what people say on the main screen.

For further help, look in the Word file that came with CChat Pro.