Any advice on running 180nm ROM/RAM compilers on modern Linux?

Hi

I'm trying to run 180nm ROM/RAM compilers and the OS options are very restricted, the ROM compiler requirement is SunOS5
I've got a  Linux platform.

I'd appreciate advice on where I should focus my efforts.
If anyone has gotten past this recently, how did it get resolved?
I've filed a support case.

I did have the later tools work and looking there I could hacked around and get the core java to launch, but it was not completely successful and I am dubious if thats worth pursuing.

Thanks in Advance

Stephen