The available versions are:
ttrr-latest.tar.gz (alpha)
md5sum: 9a55492c6cb55ed2d5da50fcf17bd22b
ttrr-2012-06-26.tar.gz (alpha)
md5sum: f4323db1c107379a664c65fcdfa265fb
ttrr-2012-05-05.tar.gz (alpha)
md5sum: 421f4e94be1cb74f5068224cf83f8af2
ttrr-2012-03-16.tar.gz (alpha)
md5sum: cd26fb4d145d24f87b4b061993e08162
ttrr-2012-03-10.tar.gz (alpha)
md5sum: 579975a0f99ce6b3efb6d69f95d03c7c
ttrr-2012-03-09.tar.gz (alpha)
md5sum: ed4528c399c0e6bef617c4045ab00b53
ttrr-2012-02-23.tar.gz (alpha)
md5sum: 6f5a4f57ba761b923ea6828aeee53057
ttrr-2012-02-22.tar.gz (pre-alpha)
md5sum: a007c94ae1e72236d49b6b30d16e266a