The source package is uploaded to REVU. The binary package for testing is available below.
Send any bug reports to andrew [at] aehunter.net or andy.hunter [at] rogers.com.
UPDATE: fixed some issues with the package. Animation is now enabled.
Binary (Ubuntu):
gtk-engine-murrine_0.31-0ubuntu3.deb
OLD: gtk-engine-murrine_0.31-0ubuntu1.deb
Sources comming soon, or check out REVU .