Don't waste your time with Blender. Whatever it does well, it isn't importing/exporting obj's.
Try PoseRay. There really isn't much to it. If you can open it with PoseRay you're halfway there.
<edit>
If you can't, you're probably hosed.
</edit>
If you're still stuck in about 6~8 hours I could take a look at it, but I'm pretty busy at the moment.