Sven,
It should be fairly simple to get our BAe146 working with this package since the EW addon only contains a 2D panel and no VC, you just have to alias the panel to the EW one...
If you don't know what that means, no problem, just have a look at
this article and look where it says how to "alias" a panel from a C182 into a 747 and follow these instructions in your EHM BAe146 folder...
If you have any problems, just post again and I'll try and talk you through it.