For me Blender has never really worked with importing.
Just got the latest 2.61 and still when I try and import a .blend file into unity 3.5 it complains I need a version of Blender higher than 2.45!!!
I can import fbx's but for the love of god can never get the axis rotation to match up. Do I *really* have to rotate the mesh in blender and import that way? (the y/z axis issue).
You would of thought at this stage of the game the axis issue would of been resolved - I've read lots of threads on this and it just seems rather 'lucky' if it works or not.
If anyone has a simple method that works reliably I'd love to know )