We recommend that you use packages from your Linux distribution to avoid unnecessary fiddling with dependencies. In any case, Straw is easy enough to build. Kindly read the README file included in the tarball for instructions on how to build Straw.
More releases can be found at GNOME ftp site.
straw 0.27 is now available for download from
http://download.gnome.org/sources/straw/0.27/
and also at
http://bighead.poli.usp.br/~lameiro/straw/