OCCAM poster and presentation templates are maintained on GitHub.
The preferred way of accessing them is with git by opening a terminal and typing:
git clone https://github.com/cbm755/occam_templates.git
Later you can type "git pull" to download the latest changes.
As least on my machine, Kamel's poster template has the text color the same as the background.
I've added some changes from Joseph Parker (temp_poster_jp.tex et al), but I haven't had a chance to compare.