Well… They all have their limitations. You will have to learn a lot about a CMS before you decide it is or isn’t the ‘way to go’, unfortunately.
I used Mambo on my first site and realized that to do database transactions, which is assuredly utilized on Pokerlistings.com, I had to write my own modules and components.
It wasn’t difficult, but I had to learn the internal workings of mambo to get things to happen correctly.
I build from scratch now.
With all that said… The person either highly customized a CMS or is using something with tons of features. Just a guess, though.
kw