asterisk users - Sep 2010 - vegastream 50 BRI-s latest firmware ?

Hi All, sorry for the off topic.

I own 3 vegastream 50 BRI-s 4 ISDN ports gateways with firmware version 6
and I need some advanced parameters available only from firmware version 7.

I am sure that I need those parameters because changing the vega gateway with a
20$ cologne pci card in an Asterisk box results in a correct call setup.

The vendor refuses to provide the firmware because the product is discontinued,
also begging at the phone gave the same result:
they kindly suggest to replace the units with newer ones, at 900USD each.
I purchased them in the 2004.

Question: maybe someone happens to have the latest firmware file and may share
it with me ?

Thanks and regards,
Mike