Help with CooldownTimers2 and SorrenTimers

Hey, I'm new to boxing and I'm trying to get these two addons to work correctly for sending cooldown information to my main. There were mentioned here:
Addon that can broadcast cooldowns.

I've been up and down the settings page for at least an hour now, checking and unchecking boxes, changing 'Group' dropdowns, and overall driving myself crazy. The rest of the addon seems to work (character A can see character A's cooldowns), but I can't for the life of me get character A to see character B's cooldowns.

Any help with this would be much appreciated, thanks!

I forget exactly where the option is, but I know you have to enable the broadcasting and receiving of cooldowns as it is turned off by default. The option is there it's just a pain to find. I can check when I log on later tonight if you don't find it by then.