Guys - firmware for NSN Surpass hiX 56xx series required

Heyho, I hope someone out here can help me, I am looking for a set of firmware files for the NSN Surpass hiX DSLAM - I got one, but it has a oddly different version on each linecard, and I cannot play with it in this state, so if someone is having the firmware pack (any release taken, I am on some 2.8, but later would also be fine) and could share it, I would be very very happy.

Thanks