I know nothing about how to get files in and working in Make Human but you guys said making the model was the sticking point so I figured that I'd make a low poly model for you and then you guys could do the fancy magic to make it deform with your sliders and all that. My proxy weighs about 770 faces (~1480 tris) and is UV unwrapped. It does have the odd triangle in the mesh but in the interest of polycount I decided it was worth it instead of spamming loops all over the place. Also, since there is an eternal debate running about the best way to do knee and elbow joints at this resolution I left it so a quick cut will set the joints to whatever method the user prefers.
Download the blend file here:
http://www.mediafire.com/?zmfyhm2jkmz
I Rorkimaru aka Rory Michael O'Sullivan release this model to the MakeHuman team to use, alter, redistribute and/or throw in the trash as they see fit
the file has my low poly version of your base mesh and the base mesh as it was imported in case you need it for matching up size or something weird like that.
Also, since the internet doesn't believe anything that doesn't have pictures here is a picture with wires and a picture using a normal map:
The normals on the hands and feet look a bit odd but it is just a straight bake and given the level of detail normals at that res are never going to bake perfect. The one in the front is the low poly in the comparison shot (I know it's obvious but I may as well say it...)

