CocosBuilder 3.0 alpha 5 has git tag "v3.0-alpha5" (with commit ID: 76499877e8c5f9da04406065506a144dd3cc228e) that matches up with the following related repos:
- CCBReader commit ID: c48260028dc5b2e0de5f76504ad584f017a5accb
- cocos2d-iphone commit ID: b51de15acb37d72719b03314771e4caa04e57a33 (v2.1 rc-2)
One way to find a compatible set of these tools is to checkout a git commit with a given tag like "v3.0-alpha5" in the CocosBuilder repo (https://github.com/cocos2d/CocosBuilder.git) and look at its submodules. This repo is using submodules to link to exact versions of CCBReader and cocos2d-iphone repos.
Concerning your real problem, scenes that won't animate, I have experienced that same. Right now, if I create a scene (ccb file) in a new project with CocosBuilder 3.0 alpha 5 containing an animation, the animation won't run when I push the scene using:
[director pushScene:[CCBReader sceneWithNodeGraphFromFile:@"Scene.ccbi"]];
But, if I create the scene inside an older project file, like the CocosBuilderExample included in the repo, using CocosBuilder 3.0 alpha 5, the published scene (ccbi file) does animate. There might be a problem creating ccb files using a fresh ccbproj file created with version 3.0. Maybe the CocosBuilderExample project works because it's was created in an older version of CocosBuilder like 2.1. But that's a guess.