Raptor, I made Ford Island In the old TE. I had some simular problems. I'll assume you used a default void like I did and changed the BMP for it? If so, If the new TE works in anyway like the old one You also need to change the Alpha tile. I had the same thing happening to me but only on one side not all four like yours.
I'm trying to remember what I did to fix it.
I'll have an answer soon, If that damn Pokie doesn't beat me to it:)
NUTTZ
P.S. BTW what are you going to do about the ships docked at the peirs south of Ford island? I made that tile also, It's perfect in scale and placement. I'll dig this up also.
I burnt everything I did in the TE to DVD's sortin' them out as I go.