as we all know the interface for accessing Captivate variables from embedded SWFs tends to change between Captivate versions. Shortly after it's release we upgraded to version 5.5, and I'm not succeeding in accessing the Captivate variables in my Flash/AS3 code the same way it was done in version 5.
How should I access the Captivate 5.5 variables (rdinfoCurrentSlide et al) from my SWFs?
You can use system variable : cpInfoCurrentSlide to show the slide number.
So you can use text captions to display the value of the variable, the format for displaying the value stored in the variable is $$<system variable>$$. So for slide number use : $$cpInfoCurrentSlide$$, type this in the text caption and then check it in the preview.
Perhaps I'm misunderstanding the question, but I understood the question to be not about showing values of system variables in Captivate but how to access the CP-variables in Flash, by AS? There are some threads about it, and I would recommend having a look on Jim Leichliter's blog (CaptivatePro).