probably you can build the old version using some branch.
http://anonsvn.jboss.org/repos/labs/labs/jbossrules/branches/5.0.x/



2010/8/31 多田丈晃 <t.takeaki@gmail.com>
Hi,

Does anyone know where I can get older version Drools archive?

On my work, I need to use Drools 5.0.
but In Drools download page only have latest version.

Please let me know where is older version archive download page.
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