Adding new armor with FT Improver

I'm sorry to bother you with this beaten-to-death problem, but I want to add T51b Power Armor as a new set and character sprite doesn't work. I've read FT Improver readme, tried to find some tutorials in your FAQ, read couple of threads, but I still can't fix it.

Fallout Tactics\Improver_data\ArmourTypes.txt - added {PowerT51b;Pow;0;0;0} right after {Sarge;Pow;0;0;0} and before the closing }

Fallout Tactics\core\entities\items\Armor - placed bosPower.ent from .bos archive and renamed it...

Adding new armor with FT Improver