Default Android ROM on Jade

Hi guys!

I own a HTC Jade, and WinMo is starting to annoy me. The HTC Tattoo // Click has exactly the same hardware (expect it also got a g-sensor). Is it possible to port its rom to my jade? The Bootloader (TriColorScreen) looks nearly the same, is it the same as well?
I've downloaded the official HTCpedia Rom for Tattoo and it only has .nb0 and .img files. I need .nbh to flash my Jade. Is there a way to convert them or something?

Haret doesnt work on my device, i really dont know why.

so far, would be great if somebody with some knowledge about Android could tell me if its possible at all..

so far, cheers!