There is only one frame in the animation file. So I guess there is something wrong either in the dae file or in the conversion process.
I haven't checked the converter source and specification, but I guess that having a
Code:
<technique_common>
<accessor source="#node-Bip01_matrix-interpolation-array" count="25" stride="1">
<param name="INTERPOLATION" type="name"/>
</accessor>
</technique_common>
in the dae file means that the animation data has NOT been sampled, and therefore the converter can't extract it.