Hi,
I have just tried 2.44 and to my disappointment the import of my model is not working really good.
I have a scene that that I can import in 2.43 without problems. It can be imported to Luxology Modo 501 as well. It is done in Microstation V8i SS3 Beta.
In 2.44 all materials become Specular and the textures do not appear. In 2.43 all the textures where mapped and worked, only thing I had to do was to adjust them.
Another important thing, the tree of materials in the model collapse when you change a material from Specular to Glossy, it would be nice if this tree newer collapses unless I do so manually. Now I have to open it again for every material I change and then there is not really a point to having a tree.