Tux Typing version 0.7 now has a makefile.am patch. This patch resolves some installation directory problems. If you are using version 0.7, then you may want to consider applying this patch:
http://sourceforge.net/tracker/index.php?func=detail&aid=421672&group_id=12715&atid=312715
Tux Typing homepage:
http://www.geekcomix.com/dm/tuxtype/