The latest release had a bug with Tribal War not letting you easily go on after selecting regions.  Seems to have been expecting one more region than what it was fessing up to.

Patch is here - simply unzip and replace the .exe.  This will only work if you have downloaded PocketCiv since 1AM EST last night.  :-)

Otherwise, the installers on the links to the right will lead you to all the goodness of the current version.