Osaka freeking blows.
Thats exactly where I got my B16A from. Mine was ok.....the Block was stamped B16A...... 5xxxxxxx.... The tranny had the org. stickers saying Y21xxxxxx, but my valve cover was from a 1st gen, and in terrible condition. Came with the P30. I got off easy. My good friend, however, ordered a B16B CTR from them and received a B16A with a red valve cover. How rediculous is that. They said it was a shipping error.
If it makes you feel any better, the B16 I got from them was PLENTY strong, i've put about 20k on it since the sawp and have had no problems whatsoever.
Hope you get your problems sorted so you can drive your car, not just curse at it.