Dammm, I know how it feels when shit doesn't go right...but you have to not give up. I have learned from doing different systems that sometimes you have to admit that you cannot do everything yourself and outsource some of the work.
Darkfox, what were you trying to do? Were you trying to continue the project of the oem looking screen? Did u pay with a credit card to this crazy place? If so, just call your CC co. up and they will take care of the despute, no need to get a heart attack trying to fight with a stupid owner.
Tell you what, send me a pm and let me know what you're trying to do. Seeing how things have gone so bad for you with CarPCs, I will offer you a deal you cannot refuse. I will provide you with all the parts that you need for your system at cost. Yes, at COST! You want the transflective screen, I'll give to you at cost and if anything goes wrong with any of the parts, you just ship them right back to me. PM me if you're interested.