problem imaginf dell optiplex 320

[FRFL-IT]

I had a problem reimaging dell optiplex 360 pc's. I installed interim release 4and then the imaging driver update,this has fixed the issue with the optiplex 360's,but now I am unable to reimage our existing optiplex 320 pc's.

Any ideas what I can do so that I can image all the pc's we have?

Thanks