I cut and paste the code. I get hundreds of impressions. And CJ so far today hasn't tracked a one of them. So much for working for free.
If you're not seeing impressions, there are 2 reasons: 1) You didn't copy the impression code. 2) CJ has an announcement about maintenance delaying Performance Report stats 8-12 hours this weekend. Impressions show up there, so that's probably the issue. They've got a big notice about that when you log in.
I've been working with CJ for almost 10 years now. I have more sites than I care to mention. I'm actually pretty good at knowing when things are tracking or not. But anyways... if anyone else is having specific Joomla/CJ tracking issues from within HTML modules please feel free to chime in.