You have enabled the cssu-devel repo ( http://maemo.merlin1991.at/cssu/community-devel/ ).
That is meant to be used together with cssu-testing and can have various sideeffects with cssu-stable.
Your direct problem was, that in there (cssu-devel) was an old verison of the cssu-testing mp-fremantle-community-pr package which takes priority over the mp-fremantle-community-pr package from cssu-stable.
I've removed that package from there now so you should be good to install.

But please consider that having cssu-devel can potentially wreck all kinds of havoc on your device. There's a reason I called the thread