You don't have to select all bones. You only have to move the root. I really don't understand what you're talking about, can you upload your blend somewhere?

BTW, the reason for ignoring object translation is to support having multiple objects side-by-side in a scene without them being offset from 0,0,0 when exported.

Use keyframe copy/paste in Curve Editor to do the transfer. I just tried it and it's a bit of a pain since unlike everything else in Blender bones are Y-up (you have to paste X/Y/Z individually) but it's doable.

An IK bone clearly wouldn't be connected to anything, but I don't see why it wouldn't have a parent.

Zappy is right, only pose animations are exported. Transfer the object animation to your armature's root bone.

What you could try is scaling/translating the whole mesh by some imperceptible amount.

Wrinkle values are determined by vertex movement distance, so no. You could export as KeyValues2 and hand-edit the DMX file if you wanted, though...

This will be fixed in the next release. For now you should delete all shape keys which don't move any verts. If you're comfortable editing code you could also replace the block of code mentioned in the error with this (indentation matters!):

That looks really messed up. Which version of Blender are you using? Did you install the addon through Blender or by manually unzipping?

Check the console, it will probably be flooded with errors.

It's under 3D View > Properties > Shading.

Edit: BTW, there is a release archives page now. :)

Fix is out. (For the SMD issue; the install bug is a Blender thing.)