It is possible that the download link provided above does not refer to the intended version.
If you are looking for WordTris 1.5, you may try searching for a download link using
Google.
Review
Transfers the idea of the popular game Tetris to the language learning. Feed in a translation before the questions pile up to the top. WordTris increases learning results by automatically repeating words not guessed. The game is provided with lessons for English, German, French, Italian and Spanish in different combinations and can be easy extended with your own lessons.