Though one problem, i signed the tx on the offline machine (0.96.4) but for some reason i am not allowed to broadcast it on my online machine (0.96.2)
Armory can be quite particular about online and offline being on the same version... A slight modification to the transaction format used by Armory can result in either the offline machine not recognising an unsigned transaction as valid or, in your case, the online machine not recognising a signed transaction before broadcast.
Certainly try 0.95.5 on the online machine, but if that doesn't work either, then I'd recommend you try using 0.96.4 on the online machine.