How to Import Animations from Blender to Unity?

So in Blender I made 4 animations but when I select my character and the armature then export it as a .fbx then go into unity only one animation is there not all 4. Do I have to import each animation separately?
Thanks

If you save your .blend file into Unity, all the animations will be there.

When I do that the console says: Blender could not convert the .blend file to FBX file.
You need to use Blender 2.45 or higher for direct Blender import to work. :cry:

EDIT: and I have Blender 2.55 Beta

in blender, export as fbx.