I'd appreciate a little help from the experts

I decided to try and flash my MK3 with the F1ET IPC files like some of you guys have done. Big mistake. Parts of it failed!
I can still start the car and drive, however, all the display is dead, no speedo, rpm, fuel etc. I did at one point have speedo and rpm until I accidentally flashed CM5T-14C318-AD.vbf (which also failed part way through), now it's all dead.
Does anyone know what I can do to recover from this? If I can at all. Will part numbers have changed? How would i update a dead module?
Thanks in advance!