Player Run Animation Speed

I've read through all the posts on this topic and am still having problems getting my players to change their run animation speed based on their movement speed.

I'm using Milkshape, and the DTS Plus exporter. The way I understand it, to get this to work, you have to export ground transform information. On what node does this information go? I've tried creating a node called "bounds" and animating it forward in space, but that had no effect. I also tried putting the actual transform on my skeleton's root node, but then the whole body moves forward in space and then pops back to the beginning every cycle.

Documentation on the exporter says that this is what the "bounds" node is for, but then it also says that this node is unnecessary in milkshape. So how do you do this in Milkshape? All the solutions I've read are for 3DS Max.

Thanks,
Vijay